Compounds of 初

• 初
  (adj-na,n,adj-no) (1) innocent
  naive
  unsophisticated
  inexperienced
  green
  wet behind the ears
  (n-pref) (2) birth-
• 初
  (n,adj-no,n-suf) first
  new
  (P)
• 仮初
  (io) (adj-no,adj-na) (1) (uk) temporary
  transient
  (2) trifling
  slight
  negligent
• 原初
  (n) origin(al)
  source
  first
• 最初
  (adj-no,n-adv,n-t) beginning
  outset
  first
  onset
  (P)
• 初に
  (n) for the first time
• 初め
  (n-adv,n-t) beginning
  start
  origin
  (P)
• 初演
  (n,vs) first performance
  (P)
• 初音
  (n) first warbling heard in a New Year
• 初夏
  (n) (1) early summer
  (2) (obs) fourth month of the lunar calendar
  (P)
• 初夏
  (n) (1) early summer
• 初花
  (n) first flower of the season or year
  first flowering on a plant
  first menstruation
• 初荷
  (n) first cargo of the year
• 初回
  (n) (1) first time
  first innings
  initial attempt
  (adj-no) (2) first
  initial
  (P)
• 初釜
  (n) first tea ceremony of New Year
• 初期
  (n,adj-no) (1) early (days)
  initial stage
  (2) (comp) initial
  (P)
• 初球
  (n) pitcher's first pitch (to batter)
  (P)
• 初級
  (n,adj-no) elementary level
  (P)
• 初空
  (n) sky on New Year's morning
• 初空
  (n) sky on New Year's morning
• 初経
  (n) first menstruation
• 初詣
  (n,vs) first shrine visit of New Year
• 初見
  (n) seeing for the first time
  first sight
• 初口
  (n) beginning
• 初更
  (n) first watch of the night (approx. 7 pm to 9 pm)
• 初校
  (n) first (proofs)
• 初号
  (n) first number issue of a magazine
• 初婚
  (n) first marriage
• 初座
  (n) first half of a tea ceremony (in which the charcoal is set and light food served)
• 初刷
  (n) first print (run)