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カイコウ
Meanings
Adjective (な)
Noun
1. oceanic trench; deep-sea trench; deep
Alt. forms
海かい溝こう
100%
カイコウ
Pitch accent
カ
イコウ
Used in vocabulary (2 in total)
Mariana Trench (deepest part of the ocean, near the Mariana Islands)
Japan Trench