gear

Length / number of characters: 4
Number of words: 1

To dress
equipment consisting of miscellaneous articles needed for a particular operation or sport etc.
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
Goods
Manner
Clothing
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)
set the level or character of
Whatever is prepared for use or wear
The harness of horses or cattle
Warlike accouterments
Business matters
A toothed wheel, or cogwheel
An apparatus for performing a special function
Engagement of parts with each other
Anything worthless
To provide with gearing
To be in, or come into, gear

You can also check definition for gear on wikipedia or google (link opens in new window)