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1

backfire

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noun back·fire \-ˌfī(-ə)r\

Definition of backfire

  1. 1 :  a fire started to check an advancing fire by clearing an area

  2. 2 :  a loud noise caused by the improperly timed explosion of fuel mixture in the cylinder of an internal combustion engine



1839

First Known Use of backfire

1839


2

backfire

verb back·fire

Simple Definition of backfire

  • of an engine or vehicle : to make a loud sound when fuel is not burned properly

  • : to have the opposite result of what was desired or expected

Full Definition of backfire

  1. intransitive verb
  2. 1 :  to make or undergo a backfire

  3. 2 :  to have the reverse of the desired or expected effect <their plans backfired>

Examples of backfire

  1. <my plan to throw her a surprise party backfired when she ended up sobbing that everyone had forgotten her birthday>



1886

First Known Use of backfire

1886



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