Compounds of 一

• 一
  (num,pref) (1) one
  (suf) (2) best in
  the most (...) in (where an adjective follows)
  (P)
• 一
  (num,pref) (1) one
• 一
  (io) (n) (1) one
  (2) for one thing (often used in itemized lists)
  (3) (after a noun) only
  (4) (with a verb in negative form) (not) even
  (n-adv) (5) just (i.e. "just try it")
• 一々
  (adv,n) one by one
  separately
  (P)
• 一々
  (adv,n) one by one
  separately
• 一つ
  (n) (1) one
  (2) for one thing (often used in itemized lists)
  (3) (after a noun) only
  (4) (with a verb in negative form) (not) even
  (n-adv) (5) just (i.e. "just try it")
  (P)
• 一に
  (adv) solely
  entirely
  only
  or
• 一は
  (exp) for one thing
• 一握
  (n) handful
• 一葦
  (n) (1) one reed
  (2) boat
• 一案
  (n) idea
  plan
• 一位
  (n,adj-no) (1) first place
  first rank
  unit's position
  (n) (2) (uk) Japanese yew (Taxus cuspidata)
  (P)
• 一尉
  (n) captain (JSDF)
• 一意
  (adj-na,adv,n) (1) unique
  (2) earnestness
• 一一
  (adv,n) one by one
  separately
  (P)
• 一一
  (adv,n) one by one
  separately
• 一員
  (n) person
  member
  (P)
• 一因
  (n) cause
  (P)
• 一羽
  (n) one (bird)
• 一雨
  (n) shower
  rainfall
• 一円
  (adv,n) whole district
  one yen
  throughout
  (P)
• 一塩
  (n) slightly salted
• 一往
  (adv) once
  tentatively
  in outline
  for the time being
  just in case
• 一応
  (adv) once
  tentatively
  in outline
  for the time being
  just in case
  (P)
• 一億
  (n) 100,000,000
  one hundred million
  (P)
• 一夏
  (n) (Buddh) one summer (during which a monk attends a summer retreat)
• 一家
  (n) a house
  a home
  a family
  a household
  one's family
  one's folks
  a style
  (P)
• 一家
  (n) a house
  a home
  a family
  a household
  one's family
  one's folks
  a style
• 一箇
  (n) piece
  fragment
  one (object)
• 一花
  (n,adj-no) success
  one flower