How to say "trade-in" in Japanese

• 下取りしたどりJLPT N1approx.Common
  noun, suru verb, transitive verbThe classic trade-in sense: handing your old car or appliance to the dealer when buying a replacement, its value deducted from the price — the 'part exchange' side of 'trade-in'.
  車くるまを下取したどりに出だして新車しんしゃを買かった。↗

  I traded in my car for a new one.
• 買取かいとりCommon
  noun, suru verb, transitive verbUsed when a shop or company buys your used article outright, typically for cash, rather than taking it in part exchange; it also covers a company buying items back.

Use 「下取り」 when an old item is traded in as part payment toward a new one; use 買取 when a shop or company simply buys the used article outright, with no new purchase involved.

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

• 下取りしたどりtrade-in
• トレードインtrade-in
• 交換品こうかんひんthing bartered
• 買取かいとりbuying used articles as a company
• 下したtrade-in