凹洞

āodòng
  1. cavity
  2. pit

CEDICT

Entry Composition

1 凹 āo concave; depressed; sunken; indented; female (connector etc)
2 洞 dòng
  1. cave
  2. hole
  3. zero (unambiguous spoken form when spelling out numbers)

classifier: 個

Related entries

空洞 kōngdòng
  1. cavity
  2. empty
  3. vacuous
空腔 kōngqiāng cavity
窿 lóng
  1. cavity
  2. hole
腔 qiāng
  1. (bound form) cavity
  2. (bound form) speech; talk
  3. tune
  4. accent (in one's speech)
  5. (old) classifier for carcasses of slaughtered livestock
汤姆说话的法国腔很重。

Tom has a very strong French accent.

Source: Tatoeba

穴 xué
  1. cave
  2. cavity
  3. hole
  4. acupuncture point
  5. Taiwan pr. xuè
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