Ool: Food
Haraka: Fire
Macha: Dinosaur
Cuda: Come/Follow
Pooka: Hurt/Injured
Bobo: Friend
Alounda: Love
Zug-Zug: Sex
Nya: No
The character of Nook is meant to serve as a translator for the audience watching the movie. In fact, in his first scene meeting Atouk's tribe, his dialogue does just this: explain the meaning of most of the various caveman words.