Compounds of 口

• 戸口
  (n) door
  doorway
  (P)
• 糊口
  (n) bare livelihood
  subsistence
• 虎口
  (n) tiger's den
  jaws of death
  dangerous place
• 後口
  (n) (1) aftertaste
  (2) later (in line or in turn, etc.)
• 鯉口
  (n) mouth of a (sword) sheath
• 口々
  (n) each entrance
  every mouth
  (P)
• 口に
  (adv) eating
  speaking of
  referring to
• 口演
  (n,vs) oral presentation
• 口炎
  (n) mouth ulcer
  stomatitis
• 口音
  (n) oral consonant
• 口火
  (n) fuse
  spark plug
  cause (of war)
  origin (of a quarrel)
  (P)
• 口絵
  (n) frontispiece
• 口外
  (n,vs,adj-no) disclosure
  reveal (i.e. a secret)
• 口蓋
  (n,adj-no) palate
• 口角
  (n) corners of the mouth
• 口渇
  (n) thirst
  dry mouth
  dipsia
• 口器
  (n) trophi (mouthparts of an insect, etc.)
• 口気
  (n) bad breath
  intimation
• 口許
  (n) the mouth
  shape of the mouth
  near an entrance
• 口供
  (n,vs) affidavit
  deposition
• 口琴
  (n) mouth harp
  Jew's harp
• 口琴
  (n) Edo-period mouth harp (with a hairpin-like frame and a long straight tongue)
• 口金
  (n) (1) (metal) cap
  (2) clasp
  (3) mouthpiece
• 口吟
  (n,vs) humming to oneself
• 口径
  (n) aperture
  bore
  calibre
  caliber
  (P)
• 口軽
  (adj-na,n) loose-lipped
  talkative
• 口元
  (n) the mouth
  shape of the mouth
  near an entrance
• 口語
  (n,adj-no) (1) spoken language
  (2) literary style based on (modern) spoken language
  (P)
• 口口
  (n) each entrance
  every mouth
• 口紅
  (n,adj-no) lipstick
  (P)