How to say "boil" in Japanese

Choosing the right word
  • 沸くわくJLPT N4approx.Common
    godan verb, intransitive verbIntransitive: the water itself grows hot and comes to a boil. Use it for water reaching the boil, with the liquid as the subject; to heat or boil water deliberately, use 沸かす.
    薬缶やかんのお湯ゆが沸わいている。↗
    The kettle is boiling.
  • 茹でるゆでるJLPT N2approx.Common
    ichidan verb, transitive verbTransitive: to boil something in hot water, as with eggs or vegetables. This is your verb for cooking food by boiling it, not for heating the water itself.
    卵たまごは硬かたくゆでてください。↗
    Boil the eggs hard.
  • 煮るにるJLPT N2approx.Common
    ichidan verb, transitive verbTransitive: to cook food in liquid by boiling, simmering or stewing. It often describes gentle simmering or stewing, so think of dishes cooked slowly in liquid rather than a fast, rolling boil.
    くたくたに煮にる。↗
    Reduce to pulp by boiling.
  • 沸かすわかすJLPT N4approx.Common
    godan verb, transitive verbTransitive: to boil or heat a liquid — to boil water, heat a bath, prepare a hot drink. It is the deliberate counterpart of 沸く, which describes the water boiling of itself.
    ジェシーはコーヒーを入いれる為ためにお湯ゆを沸わかしている。↗
    Jessie is boiling water to make coffee.
  • 煮立つにたつCommon
    godan verb, intransitive verbIntransitive: the liquid in a pot comes to a boil or simmers as a dish cooks. Use it for the cooking liquid boiling up in the pot, not for the cook's own actions.
    必かならず弱火よわびで煮立にたたないように煮にること。↗
    Be sure to simmer on a low heat so it doesn't boil.

For water itself boiling use 「沸く」, or 「沸かす」 when you boil or heat it; for cooking food in boiling water use 「茹でる」; for simmering or stewing use 「煮る」, with 「煮立つ」 for the pot coming to a boil.

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

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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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