Definitions from Wiktionary ( )

▸ noun:  A small room within a house used to store clothing, food, or other household supplies.
▸ noun:  (obsolete) Any private space, (particularly) bowers in the open air.
▸ noun:  (now rare) Any private or inner room, (particularly):
▸ noun:  (obsolete) A private room used by women to groom and dress themselves.
▸ noun:  (archaic) A private room used for prayer or other devotions.
▸ noun:  (figuratively, archaic) A place of (usually, fanciful) contemplation and theorizing.
▸ noun:  (archaic) The private residence or private council chamber of a monarch.
▸ noun:  (obsolete) A pew or side-chapel reserved for a monarch or other feudal lord.
▸ noun:  A private cabinet, (particularly):
▸ noun:  (obsolete) One used to store valuables.
▸ noun:  (archaic) One used to store curiosities.
▸ noun:  (figuratively) A secret or hiding place, (particularly) the hiding place in English idioms such as in the closet and skeleton in the closet.
▸ noun:  (now chiefly Scotland, Ireland) Any small room or side room.
▸ noun:  (US, Philippines) One intended for storing clothes or bedclothes.
▸ noun:  (heraldry) An ordinary similar to a bar but half as broad.
▸ noun:  (Scotland, obsolete) A sewer.
▸ noun:  A state or condition of secrecy, privacy, or obscurity.
▸ noun:  The state of having one's sexual orientation a secret.
▸ noun:  (archaic) A compendium of knowledge, possibly from closet as a room?
▸ adjective:  (obsolete) Private.
▸ adjective:  Closeted, secret (especially with reference to gay people who are in the closet).
▸ adjective:  Denoting anything kept a secret or private.
▸ verb:  (transitive) To shut away for private discussion.
▸ verb:  (transitive) To put into a private place for a secret interview or interrogation.
▸ verb:  (transitive) To shut up in, or as in, a closet for concealment or confinement.
▸ noun:  (slang, uncommon) Clipping of closet case. [(slang) A gay person who pretends to be heterosexual.]
▸ noun:  (obsolete) Clipping of closet of ease, (later, UK) clipping of water closet: a room containing a toilet. [(euphemistic, obsolete) A room used to ease one's bowels: a lavatory.]

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