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Definition of AA abbreviation from the Oxford Advanced Learner's Dictionary

AA

abbreviation
 
/ˌeɪ ˈeɪ/
 
/ˌeɪ ˈeɪ/
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  1. (usually the AA)
    Automobile Association
    (a British organization that provides services for car owners)
  2. Alcoholics Anonymous
See AA in the Oxford Advanced American Dictionary

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alloy
noun
 
 
From the Topic
Physics and chemistry
C2
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