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Definitions

reinforce

[ree-in-fawrs, -fohrs] / ˌri ɪnˈfɔrs, -ˈfoʊrs /
VERB
strengthen, augment
Synonyms
STRONGEST
add to bolster boost build up buttress emphasize enlarge fortify increase shore up stress support underline
STRONG
carry energize harden hype multiply prop stiffen stroke supplement sustain toughen
WEAK
add fuel to fire back up beef up heat up lend a hand pick up pillar prop up punch up soup up stand up for
Antonyms
STRONGEST
decrease diminish discourage hinder hurt lessen let down play down prevent reduce undermine weaken
STRONG
liquefy melt soften
WEAK
subtract take away

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Troops had also been deployed to hunt the insurgents and reinforce security.

From BBC • Apr. 6, 2026

Bird designed tools to help the kids budget, and holds weekly money meetings to check in and reinforce the ideas she hopes her children, now 11, 9 and 8 years old, will internalize.

From MarketWatch • Apr. 4, 2026

The European Commission will check the aid’s proportionality and its effect on competition, fearing it may reinforce EDF’s market power.

From The Wall Street Journal • Mar. 31, 2026

When these paths align, the waves can either reinforce or cancel each other, forming a pattern of bright and dark bands.

From Science Daily • Mar. 28, 2026

Complementary colors, the brothers read, when they are placed next to each other, reinforce each other.

From "Vincent and Theo: The Van Gogh Brothers" by Deborah Heiligman