[en-shoor, -shur]
verb (used with object), ensured, ensuring.
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 ).

1350–1400; Middle English ensuren < Anglo-French enseurer. See en-1, sure

ensurer, noun
unensured, adjective

3. protect, guard, safeguard.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ensures
World English Dictionary
ensure or insure (ɛnˈʃʊə, -ˈʃɔː)
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
insure or insure
en'surer or insure

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

late 14c., from Anglo-Fr. enseurer, from en- "make" + O.Fr. seur "sure," probably infl. by O.Fr. asseurer "assure." Related: Ensured; ensures; ensuring.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
Using an oven thermometer ensures that the oven is at the correct temperature
  for baking.
It ensures that instead of burying their mistakes, doctors learn from them.
Inside the gizmo, a network of grippers scurries up the line and ensures that
  it threads cleanly out the side.
It also ensures that some areas don't become overhunted.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature