Cheer/Dance Dictionary 

ARABESQUE: A position in which the dancer stands on one leg with the other leg extended in a straight line to the rear. The positions of the arms and the height of the raised leg may vary

ATTITUDE: A position in which the dancer stands on one leg, the other leg raised behind the body with the knee bent. A similar position, but with the leg placed in front of the body, may also be called an attitude.

BALL CHANGE: rocking on the ball of one foot and stepping on the other.
CHANT: a short, repetitive yell performed continually throughout a game.
CHASSE: (sha-SAY). A sliding step in which one foot "chases" and displaces the other.
CHAINE: (sheh-NAY). Fast sequence of two-step ("chain") turns. 
CHEER: a longer spirited yell performed only during official breaks of a game. 
GRAND JETE: A large leap forward.
JUMP: a spring into the air with both feet off the ground to a given position with landing on one or both feet. Examples are: tuck jump, X-jump, toe touch, hurdlers, etc.
PASSE: (pah-SAY).  leg is raised with a bent knee with the foot placed on the opposite leg, just below the patella. This may be either parallel or turned out.
PIKE: a jump where the body is bent in half, parallel to the floor, with both legs straight out and toes pointed. Arms are also straight out matching the legs. 

PIROUETTE: (peer-oh-WET).  A turn performed on one foot. This turn is done in place.
PLIE: (plee-AY). A bending of the knees in any of the five positions. Demi plie: a half bending of the knees, with heels on the floor. Grand plie: a full bending of the knees.
PREP: the arms and leg motions used to prepare for a jump. The most common are the whip approach and the power (dip) approach.
RELEVE: (rel-uh-VAY). In ballet, a rising with a spring movement to point or demi-point.
SPOTTING: The fixing of the eyes on one spot as long as possible during turns to avoid dizziness and to keep one's orientation..
TUCK JUMP: the most simple cheer jump. Proper execution is absolutely necessary before any other jumps can be attempted. This jump is executed by bringing the knees into the chest and by keeping the back straight. Toes are pointed and arms are in a high V motion. 
TURNOUT: The body positions of classical ballet in which the limbs are turned out from the hips at a 180 angle. 
X-JUMP: a jump performed with the arms in a high V and the legs split with toes pointed so that the body resembles an ‘x’.