Usage note
西装是一种正式的衣服，通常有外套和裤子，穿起来很精神。
Xīzhuāng shì yī zhǒng zhèngshì de yīfu, tōngcháng yǒu wàitào hé kùzi, chuān qǐlái hěn jīngshén.
A suit is a formal outfit, usually with a jacket and pants, and looks smart when worn.
Context note
人们穿西装去上班或参加重要活动，比如婚礼或会议。
Rénmen chuān xīzhuāng qù shàngbān huò cānjiā zhòngyào huódòng, bǐrú hūnlǐ huò huìyì.
People wear suits to work or attend important events, like weddings or meetings.
5 examples
爸爸今天穿了一套新西装。
bà ba jīn tiān chuān le yí tào xīn xī zhuāng。
Dad is wearing a new suit today.
叔叔的西装是蓝色的。
shū shu de xī zhuāng shì lán sè de。
Uncle's suit is blue.
他穿西装看起来很帅。
tā chuān xī zhuāng kàn qǐ lái hěn shuài。
He looks handsome in a suit.
婚礼上，新郎穿着白色西装。
hūn lǐ shàng， xīn láng chuān zhe bái sè xī zhuāng。
At the wedding, the groom wore a white suit.
老师穿西装来上课。
lǎo shī chuān xī zhuāng lái shàng kè。
The teacher wears a suit to class.
5 mini stories
爸爸穿西装去参加重要会议。大家都说他很专业。
bà ba chuān xī zhuāng qù cān jiā zhòng yào huì yì。 dà jiā dōu shuō tā hěn zhuān yè。
Dad wore a suit to an important meeting. Everyone said he was very professional.
哥哥买了一套新西装。他穿着它去面试工作。
gē ge mǎi le yí tào xīn xī zhuāng。 tā chuān zhe tā qù miàn shì gōng zuò。
My brother bought a new suit. He wore it to a job interview.
叔叔的西装口袋里有一朵小花。看起来很可爱。
shū shu de xī zhuāng kǒu dài lǐ yǒu yì duǒ xiǎo huā。 kàn qǐ lái hěn kě ài。
There is a small flower in Uncle's suit pocket. It looks very cute.
爷爷年轻时也穿西装。照片里的他很帅气。
yé ye nián qīng shí yě chuān xī zhuāng。 zhào piàn lǐ de tā hěn shuài qì。
Grandpa also wore suits when he was young. He looks handsome in the photo.
妈妈帮爸爸整理西装领带。他们准备去参加晚会。
mā ma bāng bà ba zhěng lǐ xī zhuāng lǐng dài。 tā men zhǔn bèi qù cān jiā wǎn huì。
Mom helps Dad fix his suit tie. They are getting ready for a party.
Mini dialogue
穿西装
A
你今天为什么穿西装？
Nǐ jīntiān wèishénme chuān xīzhuāng?
Why are you wearing a suit today?
B
因为我要参加一个活动。
Yīnwèi wǒ yào cānjiā yī gè huódòng.
Because I'm going to an event.
买西装
A
爸爸需要买一套新西装。
Bàba xūyào mǎi yī tào xīn xīzhuāng.
Dad needs to buy a new suit.
B
这套西装很合身。
Zhè tào xīzhuāng hěn héshēn.
This suit fits well.
Related words and contrasts
related
衣服
yīfu
clothes
衣服 is the general word for clothes; 西装 is a specific type.
related
衬衫
chènshān
shirt
衬衫 is a shirt, often worn with a suit.
related
领带
lǐngdài
tie
领带 is a tie, commonly worn with a suit.