Quiz: Remember the definition of mal de mer?


[ree-in-fawrs, -fohrs] /ˌri ɪnˈfɔrs, -ˈfoʊrs/
verb (used with object), reinforced, reinforcing.
to strengthen with some added piece, support, or material:
to reinforce a wall.
to strengthen (a military force) with additional personnel, ships, or aircraft:
to reinforce a garrison.
to strengthen; make more forcible or effective:
to reinforce efforts.
to augment; increase:
to reinforce a supply.
Psychology. to strengthen the probability of (a response to a given stimulus) by giving or withholding a reward.
something that reinforces.
a metal band on the rear part of the bore of a gun, where the explosion occurs.
Also, reenforce, re-enforce.
1590-1600; re- + inforce, alteration of enforce
Related forms
reinforcer, noun
self-reinforcing, adjective
unreinforced, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for reinforced
  • The plank would be inclined to split or warp if not reinforced by long metal screws that can be tightened as needed.
  • The affluent town was reinforced with a tall limestone wall that remains standing.
  • Shop at travel stores for a stylish bag with reinforced straps to thwart knife-wielding purse snatchers.
  • Travel money storage is made to thwart theft, with metal webbing, reinforced seams and sides and chain belt attachments.
  • The reading skill should be reinforced through the review activities.
  • The flight deck bulkhead should probably also be reinforced.
  • In the middle it had a strong reinforced section with multiple u-shaped cutouts that fit over the pipe that was the fulcrum.
  • Employer limits on sick leave reinforced this perception.
  • Again unfortunately they are usually callus to their reinforced behavior and are perceived as successful.
  • But the episode reinforced perceptions that the company hyped its results, this time to boost its stock value.
British Dictionary definitions for reinforced


verb (transitive)
to give added strength or support to
to give added emphasis to; stress, support, or increase: his rudeness reinforced my determination
to give added support to (a military force) by providing more men, supplies, etc
(psychol) to reward an action or response of (a human or animal) so that it becomes more likely to occur again
Derived Forms
reinforcement, noun
Word Origin
C17: from obsolete renforce, from French renforcer; see re- + inforceenforce
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
Cite This Source
Word Origin and History for reinforced



c.1600, originally in military sense, from re- "again" + enforce (cf. re-enforce). Related: Reinforced; reinforcing.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
reinforced in Medicine

reinforce re·in·force (rē'ĭn-fôrs')
v. re·in·forced, re·in·forc·ing, re·in·forc·es

  1. To give more force or effectiveness to something; strengthen.

  2. To reward an individual, especially an experimental subject, with a reinforcer subsequent to a desired response or performance.

  3. To stimulate a response by means of a reinforcer.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for reinforce

Most English speakers likely know this word

Word Value for reinforced

Scrabble Words With Friends

Quotes with reinforced