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preventer

[ pri-ven-ter ]
/ prɪˈvɛn tər /
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noun

a person or thing that prevents.
Nautical.
  1. any of various lines set up to reinforce or relieve ordinary running or standing rigging.
  2. a line for preventing a sail from jibbing.

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Origin of preventer

First recorded in 1580–90; prevent + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use preventer in a sentence

British Dictionary definitions for preventer

preventer
/ (prɪˈvɛntə) /

noun

a person or thing that prevents
nautical a rope or other piece of gear rigged to prevent a sail from gybing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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