definition of
gear

[1] #1 gear v. [pitch] set the level or character of; "She pitched her speech to the teenagers in the audience". wn

[2] #2 gear n. [gear wheel, geared wheel, cogwheel] a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion. wn

[3] #3 gear n. [gearing, geartrain, power train, train] 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". wn

[4] #4 gear n. [gear mechanism] a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle). wn

[5] #5 gear n. [paraphernalia, appurtenance] equipment consisting of miscellaneous articles needed for a particular operation or sport etc.. wn