Clothes worn in winter — coats, sweaters, thick jackets, and other garments for keeping warm.
そろそろ冬服に衣替えをしないと寒くなるね。
We should change into our winter clothes soon — it's going to get cold.
学校では11月から冬服に替える決まりになっている。
At the school, students switch to winter uniform starting in November.
冬服は重ね着しやすいものを選ぶと便利だ。
It's convenient to choose winter clothes that are easy to layer.
セールで厚手の冬服を安く買った。
I bought a thick winter coat cheaply at the sale.