sprocket vs gear

sprocket and gear both are nouns.

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

sprocket (noun)	gear (noun)
thin wheel with teeth that engage with a chain	a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
tooth on the rim of gear wheel	equipment consisting of miscellaneous articles needed for a particular operation or sport etc.
roller that has teeth on the rims to pull film or paper through	wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed
	a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)

sprocket (verb)	gear (verb)
	set the level or character of