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

off

adjective
 
/ɒf/
 
/ɔːf/
[not before noun]
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  1. (British English) (of food) no longer fresh enough to eat or drink
    • This fish has gone off.
    • The milk smells off.
    • It's off.
    • I think this milk is slightly off.
  2. off (with somebody) (informal, especially British English) not polite or friendly
    • He was a bit off with me this morning.
  3. (informal, especially British English) not acceptable
    • It's a bit off expecting us to work on Sunday.
  4. Word OriginOld English, originally a variant of of (which combined the senses of ‘of’ and ‘off’).
See off in the Oxford Advanced American Dictionary
alloy
noun
 
 
From the Topic
Physics and chemistry
C2
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