How to say "jumper" in Japanese

• セーターJLPT N5approx.Common
  nounCovers the sweater sense of jumper: a knitted pullover worn on the upper body. If by jumper you mean a sweater, this is the word you want.
  このセーターは洗あらっても大丈夫だいじょうぶです。↗

  This sweater will stand washing.
• ジャンパーJLPT N1approx.Common
  nounThis word means a short jacket, blouson or windbreaker, not a knitted pullover. For the sweater-type jumper it is not the word you want; use it when the garment is jacket-like.

For the knitted pullover called a jumper in British English, use 「セーター」; 「ジャンパー」 means a short jacket, blouson or windbreaker, so it fits only when your jumper is a jacket-like garment.

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

• セーターsweater
• ジャンパー(short) jacket
• たがねgad