- to secure or guarantee: This letter will ensure you a hearing.
- to make sure or certain: measures to ensure the success of an undertaking.
- to make secure or safe, as from harm.
- insure(defs 1–3).
Origin of ensure
SynonymsSee more synonyms for on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Related Wordsinsure, protect, secure, provide, assure, safeguard, establish, certify, okay, confirm, clinch, effect, guard, cinch, warrant, arrange
Examples from the Web for ensure
Asserting our right to free speech is the only to ensure that 12 people did not die in vain.Ayaan Hirsi Ali: Our Duty Is to Keep Charlie Hebdo Alive
Ayaan Hirsi Ali
January 8, 2015
Police, their representatives and supporters tell us, ensure our freedom of speech through our ability to protest.Politicians Only Love Journalists When They're Dead
January 8, 2015
If someone wants to ensure a direct and secure connection, no entity, whether a hotel or otherwise, should be able to block it.How ‘Ethical’ Hotel Chain Marriott Gouges Guests in the Name of Wi-Fi Security
December 31, 2014
To ensure that all Afghan women see the gains of the last decade, we need to understand, support and enhance existing systems.
Then we must address the threats Afghan women face, and ensure they have a meaningful role in talks about Afghanistan's future.
To ensure rigidity the rudder must be stayed with guy wires.Flying Machines
W.J. Jackman and Thos. H. Russell
The success no man can ensure; but for the fighting them, if they can be got at, I pledge myself.The Life of Horatio Lord Nelson
He had resolved to ensure his silence; and he looked to the end, not the means.Life And Adventures Of Martin Chuzzlewit
A man might do it once by good luck, but none could ensure it.'Micah Clarke
Arthur Conan Doyle
But the writings and readings of men will not be enough to ensure this.The Chinese Fairy Book
esp US insure
- (may take a clause as object) to make certain or sure; guaranteethis victory will ensure his happiness
- to make safe or secure; protect
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
Word Origin and History for ensure
Online Etymology Dictionary, © 2010 Douglas Harper