sprocket vs tooth

sprocket and tooth both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprocket	Yes	No	No	No
tooth	Yes	No	No	No

As nouns, tooth is a hypernym of sprocket; that is, tooth is a word with a broader meaning than sprocket:

sprocket (noun)	tooth (noun)
thin wheel with teeth that engage with a chain	a means of enforcement
tooth on the rim of gear wheel	toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell
roller that has teeth on the rims to pull film or paper through	something resembling the tooth of an animal
	one of a number of uniform projections on a gear
	hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense