IPA: //riːəˈteɪn//
KK: /riˈeɪteɪn/
To achieve or gain something again that was previously lost or obtained.
After much effort, she was able to reattain her lost title in the competition.
Past: reattained
Past Participle: reattained
Reattain → It is formed from "re-" (meaning again) and "attain" (from Old French *atteindre*, meaning to reach or achieve). The word "reattain" means to achieve or reach something again after having lost it.
Think of 'again' ('re-') when you reach or achieve something ('attain') — that's why reattain means to achieve something once more.