期き間かんきかんCommon wordJLPTN3Freq.FrequencyTop 1,000Meanings1nounperiod; term; intervalA defined span of time, often used for schedules, contracts, events, or durations with clear start and end points.この切きっ符ぷ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。The validity period of this ticket is one week.