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



    BrE BrE//bæk//
    ; NAmE NAmE//bæk//
    [only before noun]
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    away from front
  1. 1  located behind or at the back of something We were sitting in the back row. back teeth a back room (= one at the back of a building) the back page of a newspaper compare front
  2. from past
  3. 2of or from a past time a back number of the magazine
  4. owed
  5. 3owed for a time in the past back pay/taxes/rent
  6. phonetics
  7. 4 (phonetics) (of a vowel) produced with the back of the tongue in a higher position than the front, for example /ɑː/ in English compare central, front
  8. Word OriginOld English bæc, of Germanic origin; related to Middle Dutch and Old Norse bak. The adverb use dates from late Middle English and is a shortening of aback.Idioms (informal) (of an idea, a plan, etc.) left for the present time, to be done or considered later see also back-burner compare on the front burner
See the Oxford Advanced American Dictionary entry: back