Compounds of 期

• 潜伏期
  (n) incubation period
• 前半期
  (n) the first half-year
  first half of the year
• 全盛期
  (n) heyday
  golden age
• 創世期
  (n) time of creation
• 壮年期
  (n) (1) prime of one's life
  (2) stage of maturity (geology)
• 草創期
  (n) beginning
  outset
• 短期間
  (n) short term
  short time
  (P)
• 短周期
  (n,adj-no) short cycle
  short period
• 端境期
  (n) between-crops season
  off-crops season
• 男根期
  (n) phallic stage
• 中長期
  (n) mid-range
  mid-term
• 長期化
  (n,vs) lengthening
• 長期間
  (n,adj-no) extended period of time
  prolonged
  long-range
• 長期戦
  (n) drawn-out (protracted) war or contest
• 長期的
  (adj-na) long term
  (P)
• 定期券
  (n) commuter pass
  season ticket
  (P)
• 定期戦
  (n) regularly-scheduled game (match)
• 定期船
  (n) (ocean) liner
• 定期的
  (adj-na) periodic
  (P)
• 定期便
  (n) regular service
  (P)
• 適齢期
  (n) marriageable age
  (P)
• 転換期
  (n) turning point
  transition phase
• 同期化
  (n) (comp) synchronization
• 同期式
  (n) synchronization
  synchronisation
• 同期生
  (n) (1) classmate
  graduates in the same class
  (2) wrestlers who began their professional careers in the same tournament (sumo)
• 同期的
  (adj-na) (comp) synchronous
• 二期作
  (n) a semiannual crop
  two crops per year
• 二期制
  (n) two-term system
• 任期中
  (n) during one's tenure
• 年期者
  (n) apprentice