a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
"The mechanic adjusted the gear on the transmission to ensure the engine's power was transferred smoothly without slipping."
wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed
"the fool got his tie caught in the geartrain"
a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)
"The mechanic spent hours adjusting the ship's rudder gears to ensure smooth steering during the storm."
equipment consisting of miscellaneous articles needed for a particular operation or sport etc.
"Before climbing Mount Everest, they spent days organizing their gear to ensure every essential item was packed safely."
Equipment or paraphernalia, especially that used for an athletic endeavor.
"The team spent all morning organizing their gear before heading to the track meet."
To provide with gearing; to fit with gears in order to achieve a desired gear ratio.
"The mechanic had to carefully gear the transmission so the new engine could reach optimal speed without overrevving."
great or fantastic
"The new sneakers are totally gear!"
A surname.
"My neighbor, Mr. Gear, helped us move our couch yesterday."