IPA: /ˌriːɪnˈvɛst/
KK: /riˈɪnˌvɛst/
To put money or resources back into a business or investment after receiving returns from it, often to generate more profit.
After receiving dividends, she decided to reinvest the money into the company.
Past: reinvested
Past Participle: reinvested
Reinvest → It is formed from "re-" (meaning again) and "invest" (from Latin "investire", meaning to clothe or to put on). The word "reinvest" means to put money or resources into something again, typically for the purpose of generating more profit or growth.
Think of putting something 'again' ('re-') into an investment ('invest') — that's why reinvest means to invest again.