كلید

Etymology
, which ultimately derives from.

Noun

 * 1) lock, a device which requires a key to be opened
 * 2) latch, a fastening for a door consisting of a bar
 * 3) linchpin, a pin inserted through holes at the end of a shaft
 * 4) white patch on a horse's muzzle and lip
 * 5) key, especially a latchkey to an outside door
 * 1) white patch on a horse's muzzle and lip
 * 2) key, especially a latchkey to an outside door