flat–out

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adjective \ˈflat-ˌau̇t\

Definition of flat–out

  1. 1 :  being or going at maximum effort or speed

  2. 2 :  out-and-out, downright it was a flat–out lie

1906

First Known Use of flat–out

1906


FLAT–OUT Defined for English Language Learners

flat–out

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adjective \ˈflat-ˌau̇t\

Definition of flat–out for English Language Learners

  • : absolute and complete

  • : greatest possible


FLAT–OUT Defined for Kids

flat–out

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adjective \ˈflat-ˌau̇t\

Definition of flat–out for Students

  1. 1 :  2out-right 1 That's a flat-out lie. — Phyllis Reynolds Naylor, Shiloh

  2. 2 :  greatest possible a flat-out effort


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