Eldest : A title for the eldest of all beings.Confusingly,it seems to apply to two different individuals;not only does Tom Bombadil claim it for himself but Celeborn also uses it to address the old Ent Treebeard.

Forn :
The name used among the Dwarves for the being known to the Hobbits as Tom Bombadil.

Iarwain Ben-adar : The name used among the Elves for the being known to the Hobbits as Tom Bombadil.It has the literal meaning 'oldest and fatherless'.

Master : A title used most commonly for the ancient and powerful being known to the Elves as Iarwain Ben-adar and to the hobbits as Tom Bombadil,whose jolly and riddling songs gave him mastery over all things in his domain.Though the title 'Master' is almost always used as a reference to Tom,there is one exception: the Orc Ugl�k used the title of his own Master,the Wizard Saruman.

Orald : The name used by Northern Men for the being known to the Hobbits as Tom Bombadil.

River-daughter :
A title given to Tom Bombadil's companion Goldberry,described by Tom as the 'River-woman's daughter' of the Withywindle.

Two Watchers :
Two carved figures that guarded the gateway of the Tower of Cirith Ungol with a strange and malevolent will.Each was formed of three bodies - one guarding the way into the tower,one the way out,and the third staring across the gateway itself.Their faces were the faces of vultures,with eyes of black stone.They had the power to block entry to the tower or escape from it,through the force of their will alone and were able to send up a shrill alarm call if their guard was breached.

Watcher in the Water :
A mysterious and horrific beast that lurked in the swollen waters of the Sirannon, beneath the western walls of Moria.
All information is thanks to the Encyclopedia of Arda and the Annals of Arda.
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