有ゆう効こう期き間かんゆうこうきかんMeanings1nounvalidity period; term of validityUsed for the time span during which a document, ticket, license, contract, or offer remains effective.このチケットの有ゆう効こう期き間かんは一いっ週しゅう間かんです。This ticket is valid for one week.パスポートの有ゆう効こう期き間かんが切きれている。The passport has expired.