Compounds of やく

• ぼやく
  (v5k,vi) to grumble
  to complain
• やくざ
  (n) (1) professional gambler or ruffian (esp. a member of the Japanese mafia)
  yakuza (member)
  (adj-na,n) (2) uselessness
  purposelessness
  (P)
• わやく
  (n) (1) (arch) trickery
  (2) fiasco
  (3) disobedience
• やくざ者
  (n) (1) professional gambler
  (2) good-for-nothing
  ne'er-do-well
  hoodlum
  ruffian
• インテリやくざ
  (n) intellectual-type gangster
• 蚊のささやくような声
  (exp) faint voice