re·in·vest /ˌriːɪnˈvest/ AWL verb [intransitiveI, transitiveT] to use money you have earned from investments to buy additional investments 再投资;把〔利润〕用于再投资reinvest something in something She reinvested the dividends in mutual funds. 她把红利再投资于共同基金。
—reinvestment noun [uncountableU]