The Japanese dictionary for learners.

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

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Examples:

口径 こうけい

  1. aperture; bore; caliber; calibre

口径比 こうけいひ

  1. aperture ratio (inverse of the f-number); relative aperture

口径食 こうけいしょく

  1. vignetting

小口径 しょうこうけい

  1. small caliber; small calibre
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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.