Definitions from Wiktionary ( )

▸ adverb:  In a direction away from the speaker or other reference point.
▸ adverb:  Into a state of non-operation or non-existence.
▸ adverb:  So as to remove or separate, or be removed or separated.
▸ adverb:  (theater) Offstage.
▸ adverb:  Used in various other ways specific to individual idiomatic phrases, e.g. bring off, show off, put off, tell off, etc. See the entry for the individual phrase.
▸ adjective:  (predicative only) Inoperative, disabled.
▸ adjective:  (predicative only) Cancelled; not happening.
▸ adjective:  Not fitted; not being worn.
▸ adjective:  Denoting something faulty, unsatisfactory, objectionable etc.
▸ adjective:  Not correct; not properly formed; not logical, harmonious, etc.
▸ adjective:  (predicative only) Inappropriate; untoward.
▸ adjective:  Less than normal, in temperament or in result.
▸ adjective:  (in phrases such as 'off day') Designating a time when one is not performing to the best of one's abilities.
▸ adjective:  (chiefly UK) Rancid, rotten, gone bad.
▸ adjective:  (by extension, Australia, slang) Disgusting, repulsive, abhorrent.
▸ adjective:  (in phrases such as 'well off', 'poorly off', etc., and in 'how?' questions) Circumstanced.
▸ adjective:  Started on the way.
▸ adjective:  Far; off to the side.
▸ adjective:  Temporarily not attending a usual place, such as work or school, especially owing to illness or holiday.
▸ adjective:  Designating a time when one is not strictly attentive to business or affairs, or is absent from a post, and, hence, a time when affairs are not urgent.
▸ adjective:  (predicative only) Presently unavailable. (of a dish on a menu)
▸ adjective:  (British, in relation to a vehicle) On the side furthest from the kerb (the right-hand side if one drives on the left).
▸ adjective:  (cricket) In, or towards the half of the field away from the batsman's legs; the right side for a right-handed batsman.
▸ verb:  (transitive, slang) To kill.
▸ verb:  (transitive, Singapore, Philippines, Nigeria) To switch off.
▸ noun:  (usually in phrases such as 'from the off', 'at the off', etc.) Beginning; starting point.

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