Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To give more force or effectiveness to; strengthen: The news reinforced her hopes.
  • transitive v. To strengthen (a military force) with additional personnel or equipment.
  • transitive v. To strengthen by adding extra support or material.
  • transitive v. To increase the number or amount of; augment.
  • transitive v. Psychology To reward (an experimental subject, for example) with a reinforcer subsequent to a desired response or performance.
  • transitive v. Psychology To encourage (a response) by means of a reinforcer.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To strengthen, especially by addition or augmentation.
  • v. To emphasize or review.
  • v. To encourage a behavior or idea through repeated stimulus.

from the GNU version of the Collaborative International Dictionary of English

  • n. See reënforce, n.
  • transitive v. See reënforce, v. t.

from The Century Dictionary and Cyclopedia

  • To add new force, strength, or weight to; strengthen: as, to reinforce an argument.
  • Specifically Milit., to strengthen with additional military or naval forces, as troops, ships, etc.
  • To strengthen any part, of an object by an additional thickness, support, or other means.
  • To enforce; compel.
  • n. An additional thickness or support imparted to any part of an object in order to strengthen it.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. strengthen and support with rewards
  • v. make stronger

Etymologies

re- + inforce (variant of enforce).
(American Heritage® Dictionary of the English Language, Fourth Edition)
re- +‎ inforce (Wiktionary)

Examples

  • Sure, if the message you want to reinforce is that working-class people are to be feared and loathed.

    Discourse.net: 'Think Before You Post'

  • What I am trying to reinforce is that we all have experiences in our lives.

    January 2008

  • When the calls reinforce a message that a candidate is carrying, then they're not always a bad investment.

    Big News Orgs Picking Up On Magnitude Of McCain's Robo-Slime Campaign

  • WHITFIELD: And on one of the issues or two of the issues that you both initially received a lot of, I guess, flack for from some segments of the community, you mention reinforce the English words and stay away from rap.

    CNN Transcript Jul 5, 2008

  • DAVID GRANGE (RET), CNN MILITARY ANALYST: Well, why don't we use the word reinforce what we have there in order to try to win this thing.

    CNN Transcript Jan 4, 2007

  • These crude labels reinforce a sense of division that cuts off the great majority of Americans from their own non-special interests -- the desire to work at a job that affords a decent living; to live in a decent home and secure health care; to educate their children, take a vacation every now and again, and eventually retire.

    Beyond Left, Right And Center: It's About Reality

  • The last thing you want is to have your veep's name reinforce your opponent's brand—and the way Americans get their news often as background noise, half-listened to is a terrible environment into which to insert a Kaine to challenge a McCain.

    More Veepstakes

  • That resolution created UNMOVIC, the replacement to UNSCOM and gave it the task of determining the remaining disarmament questions and to elaborate a plan to resolve those questions with Iraq's cooperation, in what was called reinforce ongoing monitoring and verification plan.

    CNN Transcript Dec 22, 2002

  • The ordinary sights consist of two pieces of bronze gun-metal, one of which, called the reinforce-sight, is a fixed point, firmly secured to the sight-mass, upon the upper surface of the gun between the trunnions.

    Ordnance Instructions for the United States Navy. 1866. Fourth edition.

  • There is a need to consistently reinforce our commitment to diversity, multiculturalism and inclusivity, and the best way to reinforce is to reflect it.

    The Globe and Mail - Home RSS feed

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  • Currently being trained for the 24th.

    December 7, 2010