ensure

[ en-shoor, -shur ]
See synonyms for: ensureensuredensuresensuring on Thesaurus.com

verb (used with object),en·sured, en·sur·ing.
  1. to secure or guarantee: This letter will ensure you a hearing.

  2. to make sure or certain: measures to ensure the success of an undertaking.

  1. to make secure or safe, as from harm.

Origin of ensure

1
First recorded in 1350–1400; Middle English ensuren, from Anglo-French enseurer; see en-1, sure

Other words for ensure

Other words from ensure

  • en·sur·er, noun
  • un·en·sured, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use ensure in a sentence

British Dictionary definitions for ensure

ensure

esp US insure

/ (ɛnˈʃʊə, -ˈʃɔː) /


verb(tr)
  1. (may take a clause as object) to make certain or sure; guarantee: this victory will ensure his happiness

  2. to make safe or secure; protect

Derived forms of ensure

  • ensurer, noun

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