Definitions from Wiktionary ( )

▸ adjective:  (dated outside Ireland, Scotland and England) Weird, odd, or different; whimsical.
▸ adjective:  (British, informal, dated) Slightly unwell (mainly in "to feel queer").
▸ adjective:  (British, slang) Drunk.
▸ adjective:  (colloquial, sometimes derogatory) Homosexual.
▸ adjective:  (colloquial, sometimes derogatory) Non-heterosexual or non-cisgender: homosexual, bisexual, asexual, transgender, etc.
▸ adjective:  (broadly) Pertaining to sexual or gender behaviour or identity which does not conform to conventional heterosexual or cisgender norms, assumptions etc.
▸ noun:  (colloquial, sometimes derogatory) A person who is or appears homosexual, or who has homosexual qualities.
▸ noun:  (colloquial, sometimes derogatory) A person of any non-heterosexual sexuality or sexual identity.
▸ noun:  (colloquial, sometimes derogatory) A person of any genderqueer identity.
▸ noun:  (definite, with "the", informal, archaic) Counterfeit money.
▸ verb:  (transitive, dated) To render an endeavor or agreement ineffective or null.
▸ verb:  (UK, dialect, dated) To puzzle.
▸ verb:  (slang, dated) To ridicule; to banter; to rally.
▸ verb:  (slang, dated) To spoil the effect or success of, as by ridicule; to throw a wet blanket on; to spoil.
▸ verb:  (social sciences) To reevaluate or reinterpret (a work) with an eye to sexual orientation and/or to gender, as by applying queer theory.
▸ verb:  (slang, LGBT, neologism) To make a work more appealing or attractive to LGBT people, such as by not having strict genders for playable characters.
▸ adverb:  Queerly.
▸ adverb:  (Ireland) Very, extremely.

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