Compounds of 回

• 回数
  (n) number of times
  frequency
  count
  (P)
• 回生
  (n,vs) resurrection
  resuscitation
  regeneration
  (P)
• 回折
  (n,vs) diffraction
• 回戦
  (n) match
  game
  (P)
• 回旋
  (n,vs,adj-no) rotation
  revolution
  convolution
• 回線
  (n) circuit
  line
  (P)
• 回船
  (n) lighter
  (small) cargo vessel
• 回想
  (n,vs,adj-no) reflection
  reminiscence
  (P)
• 回漕
  (n,vs) shipping
• 回送
  (n,vs) forwarding
  (P)
• 回族
  (n) Hui (Islamic ethnic minority group of China)
• 回虫
  (n,adj-no) roundworm
  intestinal worm
• 回腸
  (n,adj-no) the ileum
• 回勅
  (n) encyclical
• 回天
  (n) (1) changing the world
  turning the tide
  (2) torpedo modified as a suicide weapon (used in WWII)
• 回転
  (n,vs) rotation (usu. around something)
  revolution
  turning
  (P)
• 回答
  (n,vs) reply
  answer
  (P)
• 回動
  (n,vs) moving rotationally
  revolving
• 回読
  (n,vs) read in turn
  circulate a book (among friends)
• 回避
  (n,vs) evasion
  avoidance
  (P)
• 回付
  (n,vs) transmitting
  referring to
  passing on
• 回復
  (n,vs) recovery (from illness)
  improvement
  rehabilitation
  restoration
  convalescence
  (P)
• 回分
  (n,adj-f) (1) batch
  (n-suf) (2) times worth of
  multiplier
• 回文
  (n) circular (document)
  palindrome
• 回報
  (n) circular
  circulating letter
  reply
• 回目
  (n) -Nth time around
• 回遊
  (n,vs) (1) excursion
  round trip
  (2) seasonal migration (of fish, etc.)
• 回覧
  (n,vs,adj-no) circulation
  (P)
• 回流
  (n,vs) circulation
• 回礼
  (n,vs) going from door to door greeting relatives and friends