Akatsuki Organization
An organisation that consists of 9 S-ranked criminals including Orochimaru and Itachi. All, or most, of the members are missing-nins and S-class criminals.
Akimichi clan.Little is known about this clan of the Leaf Village, its members are large in size and some of their most powerful techniques involve using their wieght to their advantage. One of their techniques, Multi-size no Jutsu, allows them to increase the size of one part or all of their own body. After being inflated with the Multi-size technique, another odd Jutsu called Meat Tank can be used to pull in the presons body parts, allowing them to become a ball and roll with ferious speed.

Alliance Agreement, Leaf and Cloud
Signed by Influential People, it was designed to end many years of way between the two Villages.

Anbu
The name given to a team of elite Ninjas whose missions are usually very dangerous, and are assigned to them because they have special skills which fit the task. Their jobs can include anything from tracking, assassination, and capturing to guarding people, healing and protecting buildings. They usually wear animal-like masks to hide their faces [right], and each one appears to be different. This is, presumably, so fellow Anbu-members can identify each other, but no-one else can.

Animals
Dogs/snakes/toads/Etc. can be used as a Ninja tool, either threw summoning or accompaniment to attack or gather info. For instance, a Ninja Dog(Ninken) can prove extremely useful. With special Ninja training the dogs already fine sense of smell and hearing become heightened. Allowing them to be your nose and ears in a situation that leaves you blind. A Ninken can also fight alone side their master, using different Jutsu, as Akamaru does with Kiba.

Arm Guard
Commonly worn as part of the Anbu uniform.

Bandages
Primarily used to cover wounds as dressings, they are also often used as an item of clothing.

Branch House (Bunke), Hyuga Clan
Cousins, or even siblings to those in the Main House, the members of the Branch House are considered of a lower class. Branded as incapable of ever leading the Clan. It is their duty to protect the Main House with their lives, to ensure the future of the Bloodline. Despite this, as much as because of it, the Branch House of a Clan often spite the Main House.

Bugs
Insects can be used as a Ninja tool, either threw summoning or accompaniment to attack or to gather information. For instance, "Destruction Bugs", bugs that feed on chakra, can be controlled. These bugs live within a body. Members of the bug using Aburame Clan bodies are, at birth, offered to these insects to use as a nest and to feed on their Chakra. It is because of this a contract is formed that allows the clan to freely control the insects and use them as their primary fighting technique.

Chakra (Power, Strength, Energy)
Chakra is the energy a Shinobi needs when performing a Jutsu. That energy has two parts. The body energy that is in each of the billions of your cells, and the spiritual energy gained through training and other experiences. To release Chakra means to bring out these two types of energy and mix them together within your body. By bringing out and releasing Chakra, you can use a Jutsu. This is done through the process of perfoming a Seal (In) with your hands. Based on what Jutsu you use, the type (fire, water, earth, wind, lightening) and amount of Chakra used will be different. Unless Chakra is controled properly, the Jutsu will be weakened or will not work at all. So, even if you have a high amount of Chakra, not being able to use it properly will effect your stamina. If you expel all of your Chakra, you die.

Chakra holes (Tsubos)
The body has 361 of these pressure points (TenKetsu) all the size of the tip of a needle above the Inner Coil System. These are the exits for a persons Chakra. If you press these pressure points accurately. You can stop or increase your opponent's Chakra flow, controling the Chakra of your opponent at will.

Chuunin (Middle Ninja)
Ninja Rank - Average/Middle Ninja.

Chuunin exam
A test designed especially for Genin's looking to graduate into the Chuunin level. Its is broken down into 3 (actually 4) parts.
Part 1: A paper test with two hidden objectives. The entrants are told not to cheat but there is no way to answer any of the questions, unless you're extremely intelligent, so the only option left is to cheat. But, if you're caught cheating, you will be expelled from the test, along with your two team-mates. At the end of the test, the participants must make a choice whether to carry on and risk staying a Genin forever or leave it and try again next year. Their is no final question - Everyone who choose to stay in, passes.
Part 2: This test takes place in the "Forest of Death", a huge forest, full of giant animals, poisonous insects and dangerous traps. Each team is given a scroll at the start of the test, there are 2 different types of scroll given out, Heaven and Earth. To complete the test successfully, you must have one of each and the only way to get your hands on another scroll is to steal, or take it by force from another team. Once in possession of the two scrolls, the team must make it to the large tower in the middle of the forest.
Part 3: Since so many teams passed the first and second test than usual, a qualifier for the REAL third test had to be held. In this test, characters square off against each other, head-to-head. After the number of entrants has been thinned down, the last test takes place.
Part 4: The final portion of the exam takes place one month after the previous portion allowing the Genins to heal from any wounds suffered earlier, and to train and strategize. This is in order for the participants to be in top shape for the event. The final is a tournament which takes place in front of a large crowd, including a jury consisting of influential people. Upon watching the one-on-one battles between Genin, they will be the ones to decide which have what it takes to be Chuunin. Those that win there battles, will have the chance to fight again, allowing the jurors more of a chance to witness their skills. It is possible that every Genin competing will be made a Chuunin, though it is also possible that not will, even the Genin to win in the last fight. Although seeming straight forward enough, the Chuunin Selection Exam, and particularly this final is not completely what it seems. Though the extremes of the exam are a good measure of what Genin should be Chuunin , the test is also a replacement for war among the Countries because it showcases each Villages strength.

"Collectors"
As described by Kabuto, "collectors" are Ninjas which, during the Chuunin Exam's Third Test, obtain extra scrolls than they need. Each team need's one Heaven and one Earth scroll, but some may collect extras for various reasons. To ensure their safety, they could collect extra scrolls to give to stronger enemies as a gift; to gain the favour or information from other teams, from their own village for example, as a gift; or just to take out enemies who could pose a threat to themselves later on.

Coup d'etat
Sudden overthrow of a government by force or illegal means. Zabuza attempts to do this to the Hidden Mist Village, but fails.

Curse Seal/Stigma (Juin)
Performed by the wicked Orichimaru on Sasuke during the second portion of the Chuunin exam. He also did the same seal on Anko in years past. Receiving the small mark which appears on the neck through a bite from Orochimaru, afterwards the receiver falls unconscious. Then, if they are strong enough to survive the 9/10 chance of immediate death, they regain consciousness. Just by releasing Chakra the curse becomes active and forcibly pulls out Chakra, stealing the persons mind. At this point the the small mark on the neck grows to wrap around their whole body. It's a forbidden Jutsu which eats at the user's body.

Destruction bugs
Insects can be used as a Ninja tool, either threw summoning or accompaniment to attack or to gather information. For instance, "Destruction Bugs", bugs that feed on chakra, can be controlled. These bugs live within a body. Members of the bug using Aburame Clan bodies are, at birth, offered to these insects to use as a nest and to feed on their Chakra. It is because of this a contract is formed that allows the clan to freely control the insects and use them as their primary fighting technique.

Dosu's arm Sound Manipulation tool.

Exploding Notes
A peice of paper that explodes after a certain amount of time. There is writing on the paper which is a spell that causes the explosion after a specific passage of time. They are often attached to other objects which can then be sent closer to the enemy; wheither by attaching it to a Kunai and throwing it; or sticking it to an animal and letting it walk closer to the victim.

Forehead Protector
All Shinobi belonging to a Hidden Village are given one upon becoming a Genin. Depending on where they are from, a symbol that represents their Village is placed on it. Although most Ninjas wear them the traditional way (on the head), some choose to wear them in more unconventional places. Alternatively, the metal identification plate can be placed on other garments.

Four Man Ninja Group
During wars, ninjas form these groups to maximize the efficiency of their forces. The fourth member of the group would be a Medical Specialist, who would heal their wounds in combat. This allowed the group to fight for longer periods of time. This system was implemented during the war due to Tsunade's urgings.

Gauntlets and Chain
Used by 2 Ninjas, each wearing a sharp nailed metal gauntlet on opposite arms which are connected by a chain, they operate in cooperation. Surrounding their opponent with the chain, they are able to constrict the chain to the point of severing their target into two or several more pieces.

Genin (Lower Ninja)
Ninja Rank - Apprentice/Lower Ninja.

GenJutsu (Mind/Illusion Skill)
Skills/Spells which concentrate on illusion created through a form of hallucinatory hypnotism. GenJutsu needs Chakra to be raised and seal to be preformed.

Gokage (Five Shadow)
Ho-, Kaze-, Rai-, Mizu-, and Tsuchi-. Given the title of Kage as the strongest leader of one the Five Great Shinobi Countries. They rule their Villages and stand equal in power with the rulers of their Country. Although reign over the thousands of Ninja in the world is solely there's.

Gourd
What originally seemed to be a hollowed out vegetable of some sort, it later turns out that Gaara's gourd was also made out of sand. Gaara carries it on his back, where it is used to store the sand which he uses in most, or all, of his Jutsu. Though it seems his Chakra and will are not alone in the use of this sand. As the Shield of Sand that protects Gaara from almost all Jutsu acts regardless of his will.

Great Naruto Bridge
Bridge built by Tazuna residing in the Wave Country.

Hidden Cloud Village (Kumo Sato no Kakure)
Located in Lightning Country, this Village is ruled by Raikage ('Lightning Shadow'.) It is a small island to the northeast of the world. The Shinobis of this Village represent themselves with a symbol of clouds.

Hidden Leaf Village (Konoha Sato no Kakure)
Located in the Fire Country, this Village is ruled by Hokage.

Hidden Mist Village (Kiri Sato no Kakure)
Located in the Water Country, this Village is ruled by Mizukage.

Hidden Sand Village (Suna Sato no Kakure)
Located in the Wind Country, this Village is ruled by Kazekage.

Hidden Sound Village
A small village that was only recently created, it is ruled by Orochimaru.

Hidden Stone Village
Located in the Earth Country, this Village is ruled by Tsuchikage ('Earth Shadow'). It is a neighboring country to the Fire country and the Leaf Village, located in the north-west part of the world. This village is represented by a symbol of a rock.

Hokage (Fire Shadow)
This is the name given to the most elite Ninja in, and therefore ruler of, the Leaf Village.

Hokage Memorial
A huge carving on the mountains that overshadows the Leaf Village. On it are the faces of the four Hokages including the current one. The monument strongly resmebles that of Mount Rushmore. From left-to-right: the 1st, 2nd, 3rd and 4th Hokage.

Hunter-Nin (Oi-nin)
Also known as Body erasers, this special team of Ninjas are assigned the job of finding and destroying the bodies of Missing-nins, i.e. Ninjas who have deserted their village, taking with them some of it's precious secrets.

Hyuga Clan
An old and distinguished clan, the Hyuga clan is separated into two sections - the 'Main House' and the 'Branch House'. There is a lot of rivalry between the two houses, as we see in the battle between Neji and Hinata (Hinata is of the Main House, Neji of the Branch House). Hyuga members often develop the Byakugan technique, much like members of the Uchiha clan and the Sharingan. The Byakugan is much like the Sharningan, only it only gives vastly enhanced perception (the user can see over long distances, and even see the Inner Coils System and Chakra Holes of the body).

Ichiraku Ramen
Ramen stool which Naruto and Iruka often eat at. Located inside the Hidden Leaf Village. Featured in a one shot by Kishimoto Masashi in the Spring Akamaru Jump.

Inner Coils System
Like your veins that carry blood, the Inner Coils System is spread through out the body. They are like branches that carry Chakra to all parts of the body and to the Chakra Holes. The Inner Coils surround all the Chakra producing organs. So if you attack the Inner Coils System you also cause damage to the inner organs.

Jounin (Upper Ninja)
Ninja Rank - Higher/Upper Ninja. Upper Elite Class Ninja. The elites that represent Konoha. They are military captains.

Jutsu
Basically Japanese for technique, skill, ability or spell. It can also be used when describing a combat form: GenJutsu, TaiJutsu, NinJutsu. In the world of Naruto, they can be performed with the use of Chakra and a Seal.

Jutsu Types
There are five main Jutsu types: Water, Fire, Lightning, Earth and Wind. However, there are also other types, such as wood.

Karasu
A large puppet/doll that resides on the back of the Sand Ninja, Kankuro. He always carries it with him and uses it when fighting. Kankuro has the power to transform it to take the shape of people and objects using a skill called 'Puppet no Jutsu' which allows the user to control the puppet, or doll, with invisible, thin strings of Chakra which come from the hand; this allows the Ninja to make the puppet do whatever he, or she, commands.

Kazekage (Wind Shadow)
The ruler of the Hidden Sand Village.

Kikyou Castle
A place in the Hidden Leaf Village, Gekkou Hayate was killed on the roof of the building.

Kinjutsu (Forbidden Skill)
Spells/Techniques that have been forbidden to ue.
Blood Phobia (Kong Shrei Zheng)
Tsunade has this affliction that makes her afraid of the sight of blood. It derives from her past experience as a field medic.

Kunai
Throwing/Combat knife/weapon.

Kusanagi no Tsurgi
Orochimaru's sword.

Main House (Souke), Hyuga Clan
The first born male (child?) of the Main House becomes the next leader of the Clan. All other children, and their children become members of the Branch House. This tradition is followed every possible generation. As part of the Main House, they are considered more precious and must be protected for the sake of the Bloodline. It is their duty to pass on the most secret and powerful Jutsu to the next generation of Main House and head of house.

Makibishi
Small spikes designed to puncture your enemies foot.

Medical Specialist
One of the essential ninja types in a Four Ninja Battle group. This ninja specializes in healing his teammates and using the knowledge to harm his opponents. They are the few skilled ninja who can create odorless, tasteless poisons. One of the most famous Medical Specialists is Tsunade of the Three Legendary Ninjas.

Mission
Everyday, a Hidden Village receives numerous requests and jobs from its countries residents, and from citizens of other countries that are without a Ninja village; from babysitting to assassination. Ranked in difficulty with the letters A, for most difficult, to D, for the least difficult. The request are then given as missions to the Ninjas based on their abilities. If the duty is completed successfully, the Village receives a payment from the client. A missions are usually given to Jounin and Kage level Ninjas, Bs and Cs for Jounins and Chuunins, and Ds for Genin and Chuunin.
Missing-Nin (Nuke-nin) Ninjas which have abandoned their Village, taking with them its secrets. They are seeked for by Hunter-Nins who have the mission of destroying their bodies to protect their villages secrets.

Mist Ninja Seven Swordsmen
The Seven Swordsmen include Momochi Zabuza who wields a huge head-chopping cleaver and Hoshigaki Kisame who has a Shark skin sword that rips rather than cuts.
Mizukage (Water Shadow) The ruler of the Hidden Rain Village.

Momentary/Temporary Death
Through the accurate manipulation of acupuncture points, a person can be put in a seemingly dead state. Lasting only a short time, even upon close inspection the person will appear dead, until they get back their organ function and consciousness; although it should take about a week before their body function returns to normal.

Nine-Tails Demon Fox (Kyubi)
A gigantic fox which attacked the Hidden Leaf Village 12 years ago (from beginning of manga). A swing of just one of Kyubi's tails would cause tsunamis. The leaf village shinobi were assembled to fight the Demon Fox but were no match for its awesome power. After claiming the lives of many Shinobi, Kyubi was finally defeated by the 4th Hokage who died sealing the demon inside a new-born boy. The boy was Naruto.

Ninja
The special name for somebody who has been trained in the art of Ninjutsu; a master of stealth. Ninja's are often hired to perform certain duties - from finding a child to assassination - the more advanced the Ninja, the more dangerous missions s/he will receive.

Ninja Academy
A large structure in which young Ninjas train to become Genins and earn their head protecters. It has a large courtyard and many class rooms inside and its where many of the Chuunins begin teaching.

Ninja scroll (Makimono)
Used to hold any written information, from a map of the world to a Summoning Contract for a Jutsu. They can come in all shapes and sizes. Some can even be rigged to contain spells which will be activated when the scrolls are opened as seen in the second test of the Chuunin exam.

Ninja Registration Book
A book that lists all those in the Village with high ability. An important document that lists all ninjas, their picture, and information regarding them. A Ninja's entry in the book is created soon after they graduate as a Genin.

Ninjutsu
All the skills, spells, and techniques a Ninja uses on the battlefield or to gather information. Ninjutsu needs chakra to be raised and seal to be performed.

NinPou
Ninja Arts.

Pratice Arena 44/"Forest of Death"
An area of the Hidden Leaf Village where the second part of the Chuunin exam takes place.

Seal (In)
Hand poses used to cast Jutsu. These poses are named after different animals. In exceptional Ninjas, it is possible to perform a Seal with only one hand, but this is not the norm.

Senbon (Needles)
They are small but sharp needles which can be used for a number of things. For example, acupuncture or to put someone in a state of momentary death by throwing them at certain pressure points in the body such as the neck. These needles are most commonly used as throwing weapon. They can also be placed between the fingers and used like claws.

Shinobi (Ninja)
A Shinobi is another word for Ninja. It also means something like "Master of Stealth."

Shuriken (Throwing stars)
These flat star shaped metal throwing weapons are not meant for causing heavy damage. Although a barage of them fired at high speed can be deadly, these stars are often used more as a distraction than a lefal attack. Often used in conjuction with Kunais, these stars are used by nearly all Ninjas in the series, some are even used as part of a Jutsu (such as the Shadow Shuriken technique, where they are replicated in midair.) They are usually placed in a small holster on the leg, which are in easy reach of an out-stretched hand. They can also be placed between the fingers and used like an animal's claws.

Smokeball
A small sphere which explodes on contact with a hard surface. This Ninja tool creates a thick cloud of smoke, normally with the intention of making an opponent lose the advantage of sight, or to make fleeing or ambushing easier.

Soldier Pill
The soldier pill is a special medicine that is said to allow a soldier to fight for three days and three nights without resting. It's full of protien and contains a special stimulant, and is effective on both people and animals.

Summoning Contract
Used with Summoning technique (Kuchiyose no Jutsu) with the Jutsu Caster's blood used as or to make the signiture. Often on a written on a Ninja Scroll (Makimono), such a contract can also be tattooed onto a body part with the same effect.

Taijutsu (Body Skills)
Skills and techniques which focus on Martial Arts ability.

Tanzaku Gai (Tanzaku Street)
The gambling street where Orochimaru finds Tsunade.

Tanzaku Castle
A castle near Tanzaku Gai. Orochimaru, in his haste to talk to Tsunade, destroys this "Treasure of Arts" with a summoned snake.

The Three Legendary Ninja
The title name applied to Jiraiya, Tsunade, and Orochimaru, students of the Third Hokage.

Thunderbolt Staff - Kougou Nyoi
3rd Hokage's staff.

Tokubetsu Jounin (Special Upper Ninja)
Ninja Rank - Specialized Upper Elite Class Ninjas.

Tsuchikage (Earth Shadow)
The ruler of the Hidden Stone Village.

Uchiha Clan
A clan that was destroyed many years ago and only two members are known to have survived: Sasuke and his brother, Itachi. The Uchiha clan has a special eye technique called the Sharingan which has been passed down from generation to generation. The Sharingan sees through all types on Nin-, Gen-, and Tai-Jutsu. It also allows the user to copy Jutsu after or even while they see them being used. The Uchiha clan tend to use fire techniques and some of their most powerful Jutsu are that of the fire element: Mythical Fire Flower no Jutsu, Goukakyuu (Powerful Fire Ball) no Jutsu and Dragon Fire no Jutsu. However, because of their Sharingan technique, the Uchiha clans arsenal of skills is very large because they can easily copy techniques from other Ninjas.

Wave Country
The Wave Country is a small island without a Hidden Village. When they ever need the aid of a Ninjas, they always look to one of the surronding countries for help, such as the Leaf Village. It is a very poor country with a struggling economy mainly due to the failing import/export trade with other countries caused by a dirty business man named Gatou. Because the country is so isolated, they don't have strong import and export capabilities which makes them very poor. Gatou took advantage of this, and with his shipping company he monopolized the import/export market. The Wave Country used to be home to a man named Kaiza who the entire country regarded as a hero, but Gatou murdered him in front of the entire countries eyes to break their spirits. It was one man's, Tazuna, continued strength that finally freed Wave Country from poverty by creating a bridge to the main land. With Gatou dead, and his gang scattered thanks to the aid of Leaf Village Ninjas, Wave Country would no longer have to live in fear. In thanks, Tazuna named the bridge "The Great Naruto Bridge" - a bridge that would be aknowledged by all.

Yamanaka Flowers
Flower shop owned by Ino and her parent(s). Located in the Leaf Village, or in the Fire Country.

Zabuza's Black Book
Zabuza tells Naruto that he owns a black book which contains valuable information on most of the top Ninjas from all around the world and that he would not class Naruto as a Ninja unless he could prove himself strong enough to be in his book. In his book is written for Kakashi, 'The copy Ninja Sharingan Kakashi ... A man who is said to have memorized over 1000 Jutsu, maybe more."

Zaku's arm
Sound Manipulation tool.

Zouketsugan
A pill that increases your blood amount. Useful for those who use blood as a weapon (such as Kabuto), or for replacing blood lost when summoning or from battle wounds.