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 college sports, eligibility rules reinforce the idea that athletes are full-time, degree-seeking students who, like their classmates, are generally expected to finish college after four or five years. — Michael McCann, Sportico.com, 21 Oct. 2026

Kim Yo Jong, widely viewed as the second most powerful official in Pyongyang, made the statement after visiting front-line areas where soldiers are reinforcing the border. — Kim Tong-Hyung, Los Angeles Times, 21 Oct. 2026

The three lines of defense model reinforces accountability while preserving appropriate independence. — Manny Khan, Forbes.com, 20 Oct. 2026

Ministries, provinces, and state banks were mobilized to fulfill these goals, and Chinese leader Xi Jinping has continued to reinforce the effort, including with his 2026 push for Beijing to shape global AI standards. — Niall Ferguson, Foreign Affairs, 20 Oct. 2026