合わす・合す|あわすawasu[2]nakadaka (mid-high)

JLPT N1approx.Common
Which spelling to use
合わす合わす is the more common written form; use it when writing the word with kanji and kana.
合す合す is a less common written form of the same word, so choose 合わす instead when writing for learners.
Definitions
  1. godan verb, transitive verbto match (rhythm, speed, etc.)
  2. godan verb, transitive verbto join together; to unite; to combine; to add up
    彼かれはその破片はへんをくっつけ合あわした。↗
    He stuck the broken pieces together.
  3. godan verb, transitive verbto face; to be opposite (someone)
  4. godan verb, transitive verbto compare; to check with
  5. godan verb, transitive verbto cause to meet (e.g. an unpleasant fate)
  6. godan verb, transitive verbto place together; to connect; to overlap
  7. godan verb, transitive verbto mix; to combine
  8. godan verb, transitive verbto put blade to blade; to fight
Conjugation
Dictionary form合わす(あわす)
Polite (masu)合わします(あわします)
Negative (nai)合わさない(あわさない)
polite (masen)合わしません(あわしません)
classical zu / nu合わさず・合わさぬ(あわさず・あわさぬ)
Past (ta)合わした(あわした)
polite (mashita)合わしました(あわしました)
Past negative (nakatta)合わさなかった(あわさなかった)
polite (masen deshita)合わしませんでした(あわしませんでした)
Te form合わして(あわして)
Potential合わせる(あわせる)
Passive合わされる(あわされる)
Causative合わさせる(あわさせる)
Causative passive合わさせられる(あわさせられる)
Conditional (ba)合わせば(あわせば)
tara合わしたら(あわしたら)
Volitional合わそう(あわそう)
polite (mashou)合わしましょう(あわしましょう)
Imperative合わせ(あわせ)

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

Synonyms & antonyms
  • Synonym合わせるあわせるNeutralSame meaning, as in 「手を合わせる」; this ichidan form is the everyday modern choice, while 「合わす」 now sounds colloquial or dialectal.
  • Synonym合成ごうせいNeutralMaking one thing out of several, or synthesizing new substances from elements, as in 「合成写真」「光合成」; 「合わす」 only brings things into accord.
  • Synonym合するがっするWrittenWritten style: to merge or bring things together; rarely used today.
  • Related組み合わせるくみあわせるNeutralCombines different parts into a set, as in 「色を組み合わせる」; stresses piecing parts together rather than matching.
  • Related混ぜるまぜるNeutralStirs or blends things in, as in 「材料を混ぜる」; it has no sense of matching rhythm or speed.
  • Related合体がったいNeutralBecoming a single body, like robots merging; stresses physical joining rather than matching.
  • Related混合こんごうNeutralA noun for mixing things of different kinds, as in 「男女混合」「混合ダブルス」; 「合わす」 is a verb for making things match.
  • Related混成こんせいWrittenWritten style for something formed by mixing categories, as in 「混成チーム」.
  • Related合同ごうどうNeutralJoint action by several parties, as in 「合同練習」; stresses doing something together.
  • Related入り混じるいりまじるNeutralIntransitive: people, voices, feelings and the like mingle in a jumble; 「合わす」 is transitive, actively bringing things together.
  • Related混ぜ合わすまぜあわすNeutralTransitive: mixing things together evenly; examples in actual use are few.
  • Related配合はいごうNeutralBlending several things in set proportions, as in 「色の配合」「配合飼料」; 「合わす」 is about things matching each other.
  • Related調合ちょうごうNeutralMixing to a formula or standard, as in 「薬を調合する」; stresses precise proportioning.
  • Related融合ゆうごうNeutralWritten style: merging so completely that qualities blend into one.
  • Related化合かごうWrittenWritten, technical chemistry term: elements combining chemically into a new substance.
  • Related当てはめるあてはめるNeutralApplying a rule or standard to a concrete case, as in 「規則に当てはめる」; about fitting to situations.
  • Related合わさるあわさるNeutralIntransitive: things come together or join naturally, as in 「手のひらが合わさる」.
  • Related混ざるまざるNeutralIntransitive: something gets mixed in or blended; it describes the mixing as it happens or its result, leaning toward natural blending.
  • Related組み合わすくみあわすNeutralColloquial godan form of 「組み合わせる」 with the same meaning.
  • Related混ぜ合わせるまぜあわせるNeutralBlends several things together evenly — cooking, paints, materials; 「合わす」 is about making things match, not necessarily merging them into one.
  • Related混じり合うまじりあうNeutralIntransitive: things intermingle and blend into one another; the focus is on the mixed state that results, typically a natural blending.
  • Related一体化いったいかNeutralWritten style: unifying separate things into one whole; stresses integration.
  • Related混じるこんじるWrittenWritten style, read 「こんじる」: to be mixed in with other things; rare in modern usage.
  • Related混ざり合うまざりあうNeutralIntransitive: things mix into each other, especially colors and sounds blending together.
  • Related結び合わせるむすびあわせるNeutralTies or links two things together, or connects them logically; stresses forming a connection.
  • Related一本化いっぽんかNeutralWritten style: consolidating scattered items — proposals, policies — into a single one.
  • Antonym分かつわかつWrittenAntonym, written style: to divide or separate — the opposite of 「合わす」 bringing together.
  • Antonym分けるわけるNeutralAntonym: to divide or split apart what 「合わす」 puts together.
  • Antonym離すはなすNeutralAntonym: to part things that are in contact, as in 「手を離す」 — the opposite of fitting together.

Use 「合わす」 to bring things into accord — matching rhythm or speed, joining hands: 「手を合わす」「顔を合わす」. In modern Japanese 「合わせる」 is the usual form; 「合わす」 now sounds colloquial or dialectal. For combining parts into a set say 「組み合わせる」, and for mixing or stirring say 「混ぜる」. The rest are narrower: 「混ぜ合わせる」 blends ingredients evenly, 「合体」 is physical merging, 「合同」 is joint action, 「調合」 is mixing to a formula, 「合成」 is synthesis, 「当てはめる」 is applying rules to cases. Opposites: 「分ける」, 「離す」, and written 「分かつ」.

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

Japanese definitions
  1. あうようにする。
  2. 調合ちょうごうする。
Kanji in this word
English equivalents
See also

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

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