tooth vs sprocket

tooth and sprocket both are nouns.

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

As nouns, sprocket is a hyponym of tooth; that is, sprocket is a word with a more specific, narrower meaning than tooth:

Other hyponyms of tooth include cog.

tooth (noun)	sprocket (noun)
a means of enforcement	thin wheel with teeth that engage with a chain
toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell	tooth on the rim of gear wheel
something resembling the tooth of an animal	roller that has teeth on the rims to pull film or paper through
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