How to say "vest" in Japanese

• ベストCommon
  nounThe common loanword for the sleeveless vest or waistcoat worn over a shirt — American 'vest', British 'waistcoat' — such as the vest of a suit; for this outer garment it is the word you want.
  ベストを裏返うらがえさなくちゃ。表裏ひょうり逆ぎゃくですよ。↗

  You need to reverse your vest. It's inside-out!
• チョッキCommon
  nounAnother name for the same vest or waistcoat, but a dated term; you may come across it in older speech and writing, though ベスト is the usual choice in ordinary use.
  このチョッキは前まえが合あわない。↗

  This waistcoat won't meet at the front.
• ランニングJLPT N2approx.Common
  nounThe vest worn as an undergarment — the British sense of 'vest', a tank top or singlet — or as sportswear; an abbreviation, and the word for this undergarment sense rather than for the outer garment.

For the vest or waistcoat worn over a shirt as part of an outfit, use 「ベスト」; 「チョッキ」 is a dated synonym of it; for the vest worn as an undergarment, a tank top, use 「ランニング」.

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

• ベストvest
• チョッキwaistcoat
• ジレgilet
• 胴衣どういpadded, sleeveless undergarment
• ランニングシャツtank top (worn as an undergarment or sportswear)
• ランニングtank top (worn as an undergarment or sportswear)