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Definition of off preposition from the Oxford Advanced Learner's Dictionary

off

preposition
 
/ɒf/
 
/ɔːf/
For the special uses of off in phrasal verbs, look at the entries for the verbs. For example take something off something is in the phrasal verb section at take.
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  1. down or away from a place; at a distance in space or time
    • I fell off the ladder.
    • Keep off the grass!
    • an island off the coast of Spain
    • They were still 100 metres off the summit.
    • Scientists are still a long way off finding a cure.
    • We're getting right off the subject.
  2. used to say that something has been removed
    • You need to take the top off the bottle first!
    • I want about an inch off the back of my hair.
  3. away from work or duty
    • He's had ten days off school.
  4. away from a price
    • They knocked £500 off the car.
  5. leading away from something, for example a road or room
    • We live off Main Street.
    • There's a bathroom off the main bedroom.
  6. (informal) from a person or place
    • I got this off a website somewhere.
  7. off of
    (non-standard or North American English, informal) off; from
    • She jumped off of the wall.
    • I got it off of my brother.
  8. not wanting or liking something that you usually eat or use
    • I'm off (= not drinking) alcohol for a week.
    • He's finally off drugs (= he no longer takes them).
  9. Word OriginOld English, originally a variant of of (which combined the senses of ‘of’ and ‘off’).
See off in the Oxford Advanced American DictionarySee off in the Oxford Learner's Dictionary of Academic English
alloy
noun
 
 
From the Topic
Physics and chemistry
C2
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