Compounds of 二

• 二重母音
  (n) diphthong
• 二重螺旋
  (n) double helix (structure of DNA)
• 二重露出
  (n) double exposure
• 二乗機能
  (n) (comp) square function
• 二色刷り
  (n) two-color printing
  two-colour printing
• 二進一退
  (n,vs) two steps forward, one step back
• 二人きり
  (n) just the two of them
• 二人ずつ
  (adj-no) couple
• 二人づつ
  (adj-no) couple
• 二人とも
  (n) both (people)
  (P)
• 二人殺し
  (n) double murder
• 二人三脚
  (n) (1) three-legged race
  (2) cooperation with singleness of purpose (e.g. between companies)
  (P)
• 二人乗り
  (n,vs) two people using the same (vehicle) (often two on a bike)
• 二人切り
  (n) just the two of them
• 二人連れ
  (n) party of two
• 二成文系
  (n) binary system
• 二束三文
  (n,adj-no) dirt cheap
  very cheap
• 二足三文
  (n,adj-no) dirt cheap
  very cheap
• 二足動物
  (n,adj-no) biped
• 二足歩行
  (n,adj-no) bipedal walking
  walking on two legs
• 二大強国
  (n) (the) two great powers
• 二大政党
  (n) two largest parties
• 二段活用
  (n) conjugation (inflection, declension) of nidan verbs
• 二段構え
  (n) keeping an alternative up one's sleeve
  two-stage preparation
• 二段構成
  (n) (comp) two stage construction
• 二丁投げ
  (n) body drop throw (sweeping the opponent's legs and throwing them forward) (sumo)
• 二転三転
  (n,vs) change again and again
  seesaw back and forth
  being in a state of flux
  backtracking repeatedly
• 二点先取
  (n,vs) taking (score) the first two points of the game
• 二度刈り
  (n) getting two crops a year
• 二度咲き
  (n) second blooming