潤す|うるおすuruosu[3]nakadaka (mid-high)

Common
Definitions
  1. godan verb, transitive verbto moisten; to wet
  2. godan verb, transitive verbto profit; to enrich; to benefit
Conjugation
Dictionary form潤す(うるおす)
Polite (masu)潤します(うるおします)
Negative (nai)潤さない(うるおさない)
polite (masen)潤しません(うるおしません)
classical zu / nu潤さず・潤さぬ(うるおさず・うるおさぬ)
Past (ta)潤した(うるおした)
polite (mashita)潤しました(うるおしました)
Past negative (nakatta)潤さなかった(うるおさなかった)
polite (masen deshita)潤しませんでした(うるおしませんでした)
Te form潤して(うるおして)
Potential潤せる(うるおせる)
Passive潤される(うるおされる)
Causative潤させる(うるおさせる)
Causative passive潤させられる(うるおさせられる)
Conditional (ba)潤せば(うるおせば)
tara潤したら(うるおしたら)
Volitional潤そう(うるおそう)
polite (mashou)潤しましょう(うるおしましょう)
Imperative潤せ(うるおせ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Transitive / intransitive pair
transitive潤すうるおす⇄intransitive潤ううるおう
加湿器かしつきが喉のどを潤うるおす
潤う describes the throat becoming moist as a natural result (空気で喉が潤う), while 潤す focuses on an agent (加湿器) actively supplying moisture (喉を潤す).

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

Synonyms & antonyms
  • Synonym濡らすぬらすNeutralEveryday word for simply wetting something with liquid; it carries no sense of nourishing or enriching, so it cannot replace 「潤す」 in 「地元経済を潤す」.
  • Synonym湿らすしめらすNeutralMeans to dampen: making a surface slightly wet. It does not stress nourishing moisture, so use it for a light dampness rather than 「潤す」.
  • Related湿すしめすNeutralTo make something dry take in moisture; rare in speech. Like the others it lacks the nuance of nourishing or enriching found in 「潤す」.
  • Antonym乾かすかわかすNeutralAntonym: to dry something wet, as in laundry. It is the opposite of the moistening sense of 「潤す」.

Use 「潤す」 for moistening something dry or enriching the economy, as in 「喉を潤す」 and 「地元経済を潤す」. For simply wetting something, choose 「濡らす」; 「湿らす」 for slight dampness, 「湿す」 for making dry things hold moisture, and 「乾かす」 is the opposite, to dry.

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

Japanese definitions
  1. 水分すいぶんを与あたえる。
  2. 利益りえき・恩恵おんけいを与あたえる。
  3. 精神せいしんを豊ゆたかにする。
Kanji in this word
English equivalents

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