期間【きかん】
period, term, interval
時期【じき】
time, season, period, phase, stage
期待【きたい】
expectation, anticipation, hope, promising, rising, up-and-coming
長期【ちょうき】
long-term
早期【そうき】
early stage
定期【ていき】
fixed period, fixed term, regular, periodic, periodical, fixed-term commuter pass, fixed-term deposit, futures contracts
期限【きげん】
term, period, time frame, time limit, deadline, cutoff (date)
任期【にんき】
term of office
同期【どうき】
same period, corresponding period, same year (of graduation, entering a company, etc.), contemporary, classmate, synchronization, synchronism
短期【たんき】
short-term
前期【ぜんき】
first term, first half-year, preceding period, early period
後期【こうき】
latter period, second half, late stage, third trimester, second semester
延期【えんき】
postponement, deferment, adjournment
末期【まっき】
last years, closing years, last days, closing days, end, last stage, final stages, terminal stage (of a disease)
初期【しょき】
early days, early years, early stages, initial stages, beginning
期日【きじつ】
fixed date, appointed date, set date, deadline, due date
画期的【かっきてき】
ground-breaking, revolutionary, unprecedented, epoch-making
時期尚早【じきしょうそう】
premature
無期限【むきげん】
indefinite
周期【しゅうき】
cycle, period