Synonyms of reinforce

reinforce

verb

ˌrē-ən-ˈfȯrs 

variants also reenforce

as in to bolster

to provide evidence or information for (as a claim or idea)

letters of recommendation that reinforced the committee's opinion of the candidate

Synonyms & Similar Words

• bolster
• prove
• support
• confirm
• corroborate
• buttress
• establish
• back
• substantiate
• verify
• shore (up)
• affirm
• validate
• avouch

Antonyms & Near Antonyms

• undermine
• weaken
• undercut

Example Sentences

Recent Examples of reinforce

In an unsigned email, a Department of Homeland Security spokesperson said the department could not comment on active investigations but reinforced its commitment to charging and deporting undocumented immigrants who have unlawfully voted. — Jack Harvel, Kansas City Star, 3 Sep. 2026

Many modern security measures, like removing large electronics and reinforced cockpit doors, were direct results of the 9/11 attacks. — Kathleen Wong, USA Today, 3 Sep. 2026

Armani Beauty keeps reinforcing partnerships with film festivals around the globe, from the Berlinale Film Festival to the BAFTA, the San Sebastian and the Melbourne Film Festivals. — Luisa Zargani, Footwear News, 3 Sep. 2026

Lai added that the trend reinforces content quality as the basis of the market’s stability and long-term resilience. — Naman Ramachandran, Variety, 2 Sep. 2026