The Japanese dictionary for learners.

Instant search in romaji, kana, kanji, #k [kanji], or components #c [radicals].

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Examples:

開口 かいこう

  1. aperture (e.g. camera); opening
  2. beginning to speak; opening one's mouth
  3. broad; open

開口一番 かいこういちばん

  1. at the very beginning of one's speech; before anything else; first of all; immediately upon opening one's mouth (to speak)

開口具 かいこうぐ

    開口器 かいこうき

      開口数 かいこうすう

      1. numerical aperture (in photography)

      開口期 かいこうき

      1. dilatation stage (of labour)

      開口率 かいこうりつ

      1. aperture ratio

      開口部 かいこうぶ

      1. aperture

      開口音 かいこうおん

      1. (of Chinese) pronunciation of kanji without a medial between the initial consonant and center vowel
      2. (of Japanese) the long "o" vowel arising from combination of the "a" and "u" sounds

      読取り書込み開口部 よみとりかきこみかいこうぶ

      1. read-write opening; read-write slot
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      What you can look up

      A free dictionary built on open data (JMdict, KANJIDIC2, Tatoeba). Try a word like 食べる, a kanji like 水, or find a kanji by its parts in the radical search. New to kana, kanji or JLPT? Read the glossary, or see fudami and its data sources.