Compounds of 一

• 一家の長
  (n) head of a family
• 一家心中
  (n) family suicide
• 一家団欒
  (n) happy family get-together
• 一家離散
  (n,vs) the breakup (dispersal) of a family
• 一家眷属
  (n) one's family, relations, and followers
• 一回勝負
  (n) contest decided by a single round (bout)
  contest decided by a single roll of dice
  one-shot game (contest)
  make-or-break game
• 一獲千金
  (n,adj-no) getting rich quick
• 一角サイ
  (n) great one-horned rhinoceros
  Indian rhinoceros (Rhinoceros unicornis)
• 一角獣座
  (n) (constellation) Monoceros
• 一割引き
  (n) 10% off sale
• 一括購入
  (n) lump-sum purchase
  bulk purchase
  group purchase
• 一括処理
  (n) (comp) batch processing
• 一括置換
  (n) (comp) replace all
• 一括適用
  (n) (comp) batch application
• 一括売買
  (n) a bulk sale
  buying and selling in bulk
• 一括発注
  (n) (comp) blanket order
• 一括払い
  (n) lump-sum payment
• 一括変換
  (n) (comp) batch conversion
• 一括方式
  (n) (comp) batch mode
• 一貫して
  (exp) consistently
• 一貫作業
  (n) continuous operation
• 一貫番号
  (n) serial number
• 一閑張り
  (n) lacquered papier-mache
• 一眼レフ
  (n) single-lens reflex camera
• 一喜一憂
  (exp) now rejoicing, now worrying
  swinging from joy to sorrow
  glad and sad by turns
  alternating hope and fear
  unable to put one's mind at ease
  (P)
• 一期一会
  (n) once-in-a-lifetime encounter (hence should be cherished as such)
• 一期末代
  (n) this world (life) and the next
  eternity
• 一気飲み
  (n,vs) chugging an entire drink without stopping to take a breath
• 一気呵成
  (adv,n) (finishing writing, work) at a stroke (stretch)
  knocking something off
• 一騎打ち
  (n,vs) personal combat
  one-to-one fight
  (P)