Usage note
大衣是冬天穿的外套，比较厚。
dà yī shì dōng tiān chuān de wài tào， bǐ jiào hòu。
大衣 is a thick coat worn in winter.
Context note
大衣常出现在天气冷、出门和穿衣描述里。
dà yī cháng chū xiàn zài tiān qì lěng 、 chū mén hé chuān yī miáo shù lǐ。
大衣 often appears when the weather is cold, when going out, and in clothing descriptions.
5 examples
我穿大衣出门。
wǒ chuān dà yī chū mén。
I wear a coat when going out.
这件大衣很暖和。
zhè jiàn dà yī hěn nuǎn huo。
This coat is very warm.
妈妈买了一件新大衣。
mā ma mǎi le yí jiàn xīn dà yī。
Mom bought a new coat.
大衣放在门边。
dà yī fàng zài mén biān。
The coat is placed by the door.
冬天要穿大衣。
dōng tiān yào chuān dà yī。
You should wear a coat in winter.
5 mini stories
天气变冷了，我穿上了大衣。
tiān qì biàn lěng le， wǒ chuān shàng le dà yī。
The weather turned cold, so I put on my coat.
妈妈把大衣挂在门口。
mā ma bǎ dà yī guà zài mén kǒu。
Mom hangs the coat at the doorway.
这件大衣颜色很好看，爸爸很喜欢。
zhè jiàn dà yī yán sè hěn hǎo kàn， bà ba hěn xǐ huan。
This coat has a nice color, and Dad likes it very much.
老师说出门前要记得穿大衣。
lǎo shī shuō chū mén qián yào jì de chuān dà yī。
The teacher said to remember to wear a coat before going out.
姐姐的大衣有一个大口袋。
jiě jie de dà yī yǒu yí gè dà kǒu dài。
My older sister's coat has a big pocket.
Mini dialogue
穿大衣
A
外面很冷，你穿大衣了吗？
Wàimiàn hěn lěng, nǐ chuān dàyī le ma?
It's cold outside, did you wear your overcoat?
B
穿了，这件大衣很暖和。
Chuān le, zhè jiàn dàyī hěn nuǎnhuo.
Yes, this overcoat is very warm.
新大衣
A
你的新大衣真好看！
Nǐ de xīn dàyī zhēn hǎokàn!
Your new overcoat looks really nice!
B
谢谢，这是妈妈给我买的大衣。
Xièxie, zhè shì māma gěi wǒ mǎi de dàyī.
Thank you, this is the overcoat my mom bought for me.
Related words and contrasts
similar
外套
wài tào
coat; jacket
外套 is a general word for outerwear.
contrast
夹克
jiā kè
jacket
夹克 is usually shorter and lighter than 大衣.