How to say "rebuild" in Japanese

• 作り直すつくりなおすCommon
  godan verb, transitive verbThe general verb for making something over again. When you simply mean 'rebuild' with no particular nuance, this common word is the safest choice.
• 建て替えるたてかえる
  ichidan verb, transitive verbSpecifically for buildings and structures: tearing a house or building down and putting a new one in its place. It is not the word for small objects or figurative rebuilding.
• リビルド
  noun, suru verb, transitive verbA katakana loanword used mainly in technical fields: rebuilding an engine, with its reassembly of parts, or rebuilding software or data. It is a less common word.
• 建て直すたてなおす
  godan verb, transitive verbLike 建て替える, this verb is about rebuilding a building or structure — constructing it anew. It is a less common choice for this building sense.
  日本にっぽんは経済けいざいの建て直たてなおしをはからなければならない。↗

  Japan has to reconstruct its economy.
• 鍛え直すきたえなおす
  godan verb, transitive verbCovers 'rebuild' in the human sense: retraining and getting a body, a skill, or a team back into shape. For rebuilding houses, engines, or objects, this is not the word.

Use 「作り直す」 as the common, general verb for making something over; 「建て替える」 and 「建て直す」 for rebuilding buildings or structures; 「リビルド」 mainly in technical fields; and 「鍛え直す」 for retraining bodies, skills, or teams.

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

• 作り直すつくりなおすto remake
• 建て替えるたてかえるto rebuild
• リビルドrebuild
• 建て直すたてなおすto rebuild
• 鍛え直すきたえなおすto get back into shape
• 掛け替えるかけかえるto replace (a picture, sign, hanging scroll, etc.)