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Definition of reinforce

reinforce

/ˌriːɪnˈfɔːrs/
re · in · force

Adjective:reinforceable
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Past Simple:reinforced
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Past Participle:reinforced
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Present Participle:reinforcing
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reinforce Lexical Profile

reinforce Game Scores & Validity

• verb

1

To strengthen or support an object, structure, or material, especially by adding extra material or components.

Example

"Engineers used steel beams to reinforce the aging bridge against heavy traffic."


2

To strengthen or give additional support to an idea, feeling, argument, or habit.

Example

"The latest scientific findings reinforce the theory that regular exercise improves cognitive function."


3

To increase the size or strength of a group, workforce, or military unit by providing additional personnel or equipment.

Example

"The hospital called in off-duty nurses to reinforce the emergency department staff during the storm."


4

To encourage or establish a pattern of behavior by offering a reward or stimulus (in psychology).

Example

"Praising children when they share their toys helps reinforce cooperative behavior."

Synonyms
View all synonyms for reinforce
Antonyms
View all antonyms for reinforce

• Rhymes for reinforce

Word Origin & Etymology

Borrowed in the late 16th century from French 'renforcer' (to strengthen again), formed from the prefix 're-' and Old French 'enforcier', ultimately tracing back to Latin 'fortis' (strong).

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Reinforce. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/reinforce
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