(feminine) key (object that opens and closes a lock)
(feminine) key (object that is inserted into a device and rotated to activate it)
(feminine) any of several tools designed to turn screws, bolts, nuts, etc., especially a spanner
(feminine) curly bracket (name of the characters { and })
(feminine,figuratively) key (crucial step, element or requirement)
(feminine,figuratively) keys (free access to something)
(feminine) key; password
(feminine) key (a string used to encode or decode text)
(feminine) key (value that identifies a row in a table)
(feminine) a key of a wind instrument
(feminine) tuning lever; tuning wrench; hammer (tool used to tune certain stringed instruments)
(feminine) winder (key or knob used to wind a clockwork mechanism)
(feminine) the switch of a circuit breaker
(feminine) the clue to an answer
(feminine) group; pool (in a tournament, a set of players or team who play against one another)
(feminine) joint lock
(feminine) the mechanism that activates a switch
(feminine) the keystone of a vault
(feminine,obsolete) Synonym of clave
(feminine) clavis; key (groups of information used for identifying a taxon)

key; crucial; indispensable