Compounds of 一

• 一膳飯屋
  (n) quick lunch
• 一足違い
  (n) barely miss (meeting someone, catching a train, etc.)
• 一足飛び
  (n) (at) one bound
• 一族郎党
  (n) one's family and followers
  one's whole clan
• 一打逆転
  (n) a complete turnabout via a single blow
• 一体全体
  (adv) ... the heck (e.g. "what the heck?")
  ... in the world (e.g. "why in the world?")
  ... on earth (e.g. "who on earth?")
• 一代雑種
  (n) F1 hybrid
  first filial hybrid
  first cross
• 一代年寄
  (n) special sumo coaching stock awarded to retired grand champion
• 一代分限
  (n) new money
  nouveau riche
  person who has amassed substantial wealth in his lifetime
• 一代分限
  (n) new money
  nouveau riche
  person who has amassed substantial wealth in his lifetime
• 一大決心
  (n,vs) momentous (crucial) decision
• 一大旋風
  (n) great sensation
  taking something by storm
  making a splash
• 一大鉄槌
  (n) dealing a hard (heavy, crushing) blow (to)
• 一大転機
  (n) significant turning point
• 一諾千金
  (exp) one's word is worth 1,000 pieces of gold
  a promise should be kept at all cost
• 一旦緩急
  (exp) (when) danger threatens
  should an emergency occur
• 一段活用
  (n) conjugation (inflection, declension) of ichidan verbs
• 一段動詞
  (n) ichidan verb (one of the two main conjugation classes of verbs in modern Japanese, usually ending in -eru or -iru)
  type II verb
• 一知半解
  (adj-na,n) superficial knowledge
  half knowledge
• 一致演算
  (n) (comp) identity operation
• 一致協力
  (n,vs) combined (concerted) efforts
  solidarity
  joining forces (with)
• 一致結束
  (n,vs) closing ranks
  uniting and working together
  coming together for fighting
• 一致指数
  (n) coincident indicator
• 一致素子
  (n) (comp) identity gate
  identity element
• 一致団結
  (n,vs) solidarity
  banding together and working as one for a common cause
• 一致判定
  (n) (comp) matching
• 一張一弛
  (n) tension and relaxation
• 一朝一夕
  (n) in a day
  in a brief space of time
• 一朝有事
  (exp) (when) the time of need arises
  should an emergency occur
• 一長一短
  (n) (something having its) merits and demerits
  advantages and disadvantages
  good points and shortcomings