和英／英和辞典 - Japanese⇔English Dictionary

1. 1. [n] Mariana Trench (deepest part of the ocean, near the Mariana Islands)

Kanji in this word

• 海
  sea, ocean

  On: カイ (kai)

  Kun: うみ (umi)

  9 strokes · Grade 2 · JLPT N3
• 溝
  gutter, ditch, sewer, drain, 10**32

  On: コウ (kou)

  Kun: みぞ (mizo)

  13 strokes · Grade 8 · JLPT N1