How to say "repair" in Japanese

Choosing the right word
  • 直すなおすJLPT N4approx.Common
    godan verb, transitive verbThe basic verb for fixing: repairing or mending a broken thing, and also correcting a mistake or bad habit — a sense none of the other words here covers.
    いまそれを直なおそうったって無駄むだだ。↗
    It's no use trying to fix it now.
  • 修理しゅうりJLPT N3approx.Common
    noun, suru verb, transitive verbThe general noun for repair, especially of machines, appliances, and vehicles; it also covers servicing. Use it when you mean repair as a task or job.
    その車くるまは修理しゅうりする価値かちがない。↗
    The car isn't worth repairing.
  • 改修かいしゅうJLPT N1approx.Common
    noun, suru verb, transitive verbRepair combined with improvement or upgrading, typically of larger structures and facilities such as roads, bridges, and public buildings; the work leaves the thing better, not just working.
  • 補修ほしゅうCommon
    noun, suru verb, transitive verbRepair of a damaged part: patching or mending it rather than redoing the whole; typical of small repairs to walls, roads, and the like.
    After the war most of the highways were in urgent need of repair.
  • 修繕しゅうぜんJLPT N2approx.Common
    noun, suru verb, transitive verbRepair and mending as upkeep: fixing a house, building, or equipment to keep it in good condition; also used for mending clothes and similar items.
    この椅子いすは修繕しゅうぜんする必要ひつようがある。↗
    This chair is in want of repair.

「直す」 is the verb for fixing things or correcting mistakes; 修理 is the all-purpose noun for repairs, especially to machines; 改修, 補修, and 修繕 are nouns for repair work with distinct shades of meaning: improvement, patching, and upkeep.

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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