Compounds of 常

• 常
  (adj-no) (1) (uk) ordinary
  common
  usual
  (2) free of charge
  (3) unaffected
  as is
  safe
  (adv) (4) only
  merely
  just
  simply
  (5) but
  however
  nevertheless
• 常
  (n,adj-no) usual state of things
• 常
  (adv) ever
  endless
  (P)
• 常
  (adj-na,n,adj-no) (1) eternity
  perpetuity
  immortality
• 異常
  (adj-na,n) strangeness
  abnormality
  disorder
  (P)
• 家常
  (n) family custom
• 居常
  (n-adv,n-t) daily life
• 経常
  (adj-no) ordinary
  (P)
• 五常
  (n) the five cardinal Confucian virtues (justice, politeness, wisdom, fidelity and benevolence)
• 恒常
  (n) constancy
  (P)
• 綱常
  (n) code of morals
  moral principles
• 常々
  (adv,n) always
  usually
• 常に
  (adv) always
  constantly
  (P)
• 常闇
  (n) everlasting darkness
• 常温
  (n) normal or average or fixed temperature
• 常夏
  (n) everlasting summer
• 常会
  (n) (1) regular meeting
  (2) ordinary Diet session
• 常軌
  (n) proper course
  beaten track
  (P)
• 常客
  (n) regular customer
  patron
• 常勤
  (n,vs) full-time employment
  (P)
• 常事
  (n) normal affair
• 常時
  (n-adv,n-t) usually
  ordinarily
  (P)
• 常識
  (n) common knowledge
  conventional wisdom
  general knowledge
  common sense
  (P)
• 常習
  (n,vs,adj-no) custom
  common practice
  common practise
  habit
  (P)
• 常住
  (adv,n) permanent residence
  usually
• 常宿
  (n) one's regular inn or hotel
• 常春
  (n) everlasting spring
• 常勝
  (n) invincible
• 常常
  (adv,n) always
  usually
• 常食
  (n,vs) daily food
  regular diet
  staple food