スウェットシャツalso: すえっとしゃつすうぇっとしゃつMeanings1nounsweatshirtA casual long-sleeved top made of thick cotton, often with a fleece lining. Typically worn for warmth or leisure.寒さむいのでスウェットシャツを着きた。I put on a sweatshirt because it was cold.