How to say "trench" in Japanese

Choosing the right word
  • 壕ごうJLPT N1approx.Common
    nounThe large, deep trench of military or fortification use — a defensive excavation or a moat; think of soldiers sheltering in a long trench dug across a battlefield, not of a small drainage channel.
  • 溝みぞCommon
    nounThe general word for a long narrow channel dug in the ground, typically to carry off water or to lay a pipe; it covers the ditch side of 'trench' in ordinary drainage contexts.
    彼かれはその浅あさい溝みぞを飛び越とびこえた。↗
    He leaped over the shallow ditch.
  • どぶCommon
    nounThe open gutter or drain running along a street, often carrying dirty water, and usually written in kana; for 'trench' it is marginal — seldom the word you want unless you mean such a drainage ditch.

Use 壕 for large military or fortification trenches and moats, 溝 for narrow channels dug in the ground for drainage or pipes, and 「どぶ」 only for the open roadside gutter, not for trenches proper.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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