How to say "dissolve" in Japanese

Choosing the right word
  • 溶くとくJLPT N2approx.Common
    godan verb, transitive verbCovers dissolving something by mixing it into a liquid, such as salt or paint, with the emphasis on blending rather than on dissolving itself. It is really a mixing verb, so it suits culinary or artistic contexts.
  • 溶けるとけるJLPT N2approx.Common
    ichidan verb, intransitive verbThe intransitive sense: a substance dissolves in a liquid by itself, and it can also mean being soluble. Use it when describing sugar or salt disappearing into water, without focusing on an agent doing the dissolving.
    砂糖さとうは水みずに溶とける。↗
    Sugar dissolves in water.
  • 溶かすとかすJLPT N2approx.Common
    godan verb, transitive verbThe transitive counterpart of 溶ける: someone dissolves something in a liquid or brings it into solution. Use it when an agent deliberately dissolves something, such as dissolving a powder in water.
    彼かれはコーヒーに砂糖さとうを溶とかした。↗
    He dissolved some sugar in his coffee.

For dissolving something in a liquid, use 「溶く」 when mixing it in, 「溶かす」 when actively dissolving it, and 「溶ける」 when the substance dissolves on its own, i.e. intransitively.

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

Japanese equivalents

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

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