IPA: /ˌriːɪnˈfɔːrs/
KK: /riˈɪnˌfɔrs/
To make something stronger or more effective by adding support or encouragement.
The teacher used extra materials to reinforce the students' understanding of the topic.
Past: reinforced
Past Participle: reinforced
Reinforce → It is formed from "re-" (meaning again) and "fortis" (meaning strong). The word means to make something strong again or to strengthen it further.
Think of making something 'strong again' — 're-' means again, and 'fortis' means strong.