How to say "fix" in Japanese

• 一定いっていJLPT N2approx.Common
  suru verb, transitive verb, intransitive verbCovers 'fix' in the sense of making something constant or uniform: settling it at a set level, as when standardizing an amount or regularizing a practice.
  金利きんり自由化じゆうかの方向性ほうこうせいを一定いっていするのはむずかしいことです。↗

  It is difficult to peg the direction of interest deregulation.
• 直すなおすJLPT N4approx.Common
  godan verb, transitive verbThe word for physically fixing something broken — repairing or mending it — and equally for fixing a mistake or bad habit by correcting it.
  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.
• 据えるすえるJLPT N1approx.Common
  ichidan verb, transitive verbIts 'fix' sense is physical: fixing something in position, such as setting a table or laying a foundation; it is about placing and installing, not repairing.
  中央ちゅうおうには机つくえが据すえられていて、赤あかい革張かわばりの回転かいてん椅子いすがそえてあった。↗

  A desk stood in the centre, with a red leather swivel chair.
• 決めるきめるJLPT N4approx.Common
  ichidan verb, transitive verbCovers 'fix' in the sense of deciding: when English says 'fix a date' or 'fix the details', this is the verb to reach for, since it means to decide or determine.
  そこに行いくことに決きめた。↗

  I made up my mind to go there.
• 期すきすCommon
  godan verb, suru verb (archaic), intransitive verbIts 'fix' applies only to a time, date, or similar — it overlaps there with 決める, but for repairing, placing, or deciding generally you need another word.

Choose 「直す」 for repairing broken things or correcting mistakes, 「据える」 for fixing something physically in place, 一定 for making something constant or uniform, and 「決める」 (or the narrower 「期す」) for fixing a date or time.

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

• 一定いっていto fix
• 直すなおすto repair
• 据えるすえるto place (in position)
• 決めるきめるto decide
• 期すきすto fix (a time, date, etc.)
• 整えるととのえるto put in order
• 修正しゅうせいamendment
• 繕うつくろうto mend
• 据え付けるすえつけるto install
• 取り付けるとりつけるto install
• 期するきするto fix (a time, date, etc.)
• 作り付けるつくりつけるto fix (e.g. to a wall)
• くくりつけるto fasten (something or someone) to
• 挿げるすげるto tie
• 羽目はめplight
• 修するしゅうするto fix
• 卜するぼくするto choose
• 止めるとめるto fix (in place)