IPA: //riːəˈkwɛɪnt//
KK: /riˈækwənt/
To make someone familiar with someone or something again after a period of time.
After many years apart, I wanted to reacquaint myself with my old friends.
Past: reacquainted
Past Participle: reacquainted
Reacquaint is formed from "re-" (meaning again) and "acquaint" (from Old French *acointier*, meaning to make known or to introduce). The word means to make someone known again or to introduce someone anew.
Think of getting to know someone 'again' ('re-') after having met them before — that's what reacquaint means.