How to say "contract" in Japanese

Choosing the right word
  • 契約けいやくJLPT N3approx.Common
    noun, suru verb, transitive verbThe general noun for 'contract': a formal agreement between parties. Use it in legal and business contexts when talking about concluding or breaking a contract.
    契約けいやくはかなりいいかげんなものだった。↗
    The contract was rather loose.
  • 請負うけおいCommon
    nounA contract for work: an agreement in which one party undertakes to carry out and complete a job, the sense behind 'contracting'. It covers only this work-contract sense, not agreements in general.
  • 縮むちぢむJLPT N2approx.Common
    godan verb, intransitive verbThe intransitive verb: something shrinks or contracts in size, such as fabric or metal. The subject itself becomes smaller; there is no direct object.
    セーターが洗濯せんたくで縮ちぢんだ。↗
    My sweater shrank in the wash.
  • 狭めるせばめるCommon
    ichidan verb, transitive verbThe transitive verb: to narrow or reduce something, making a gap, range or scope smaller. Take this when someone or something narrows the thing in question.
  • 狭まるせばまるCommon
    godan verb, intransitive verbThe intransitive counterpart of 狭める: a gap, range or difference narrows or contracts. Use it when you describe the narrowing itself rather than someone causing it.
    両者りょうしゃの溝みぞが狭せばまった。↗
    The gap between them has narrowed.

For the legal or business agreement sense use the noun 契約, for a contract to perform work use 請負, and for shrinking or narrowing use 「縮む」 (intransitive), 「狭める」 (transitive) or 「狭まる」 (intransitive).

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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