The end of a term or contract (maturity). When something reaches its maturity date (e.g., deposit, bond), repayment or settlement typically occurs.
定期預金は来月満期になる。
The time deposit will mature next month.
ローンの満期日までに残高を返済しなければならない。
You must repay the outstanding balance by the loan's maturity date.
刑期を満期で出所した。
He was released after serving his full term.