tooth

Sense 1 noun

hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense

Sense 2 noun

something resembling the tooth of an animal

Sense 3 noun

toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell

Sense 4 noun

a means of enforcement

the treaty had no teeth in it

Sense 5 noun

one of a number of uniform projections on a gear