back - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “back”

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back

adverb [not gradable]  us   /bæk/

back adverb [not gradable] (RETURN)

in, at, or toward a previous place or condition or an earlier time Back can also mean in return:

back adverb [not gradable] (FARTHER AWAY)

farther away; to a farther place

back

adjective [not gradable]  us   /bæk/

back adjective [not gradable] (RETURNED)

having returned to a previous place or condition

back adjective [not gradable] (AT THE BACK)

at or near the back of something

back

noun  us   /bæk/

back noun (FARTHEST PART)

[U] the part of something that is farthest from the front [U] The back of your hand is the side opposite the palm that has hair growing on it.

back noun (BODY PART)

[C] the part of your body opposite the front, from your neck to the top of your legs [C] The back of a seat is the part your back leans against.

back

verb  us   /bæk/

back verb (SUPPORT)

[T] to give support to someone or something with money or words

back verb (MOVE BACKWARD)

[I/T] to move backward
(Definition of back from the Cambridge Academic Content Dictionary © Cambridge University Press)
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