Usage note
丢失表示找不到或失去。
diū shī biǎo shì zhǎo bú dào huò shī qù。
丢失 means to lose or be missing.
Context note
丢失常用于物品、信息和文件。
diū shī cháng yòng yú wù pǐn 、 xìn xī hé wén jiàn。
It is often used with items, information, and files.
5 examples
我的钥匙丢失了。
wǒ de yào shi diū shī le。
My key is lost.
请别丢失文件。
qǐng bié diū shī wén jiàn。
Please do not lose the file.
他丢失了钱包。
tā diū shī le qián bāo。
He lost his wallet.
数据没有丢失。
shù jù méi yǒu diū shī。
The data was not lost.
丢失的东西找到了。
diū shī de dōng xī zhǎo dào le。
The lost item was found.
5 mini stories
孩子丢失了铅笔，急得快哭了。
hái zi diū shī le qiān bǐ， jí dé kuài kū le。
The child lost the pencil and was about to cry in anxiety.
老师帮他找到了丢失的书。
lǎo shī bāng tā zhǎo dào le diū shī de shū。
The teacher helped him find the lost book.
他不小心丢失了卡片。
tā bù xiǎo xīn diū shī le kǎ piàn。
He accidentally lost the card.
丢失后，大家一起帮忙找。
diū shī hòu， dà jiā yì qǐ bāng máng zhǎo。
After it was lost, everyone helped look for it.
重要文件不能丢失。
zhòng yào wén jiàn bù néng diū shī。
Important documents must not be lost.
Mini dialogue
找钥匙
A
我好像丢失了我的钥匙。
Wǒ hǎoxiàng diū shī le wǒ de yàoshi.
I seem to have lost my keys.
B
别着急，我们一起找。丢失东西很常见。
Bié zhāojí, wǒmen yīqǐ zhǎo. Diū shī dōngxi hěn chángjiàn.
Don't worry, let's look together. Losing things is common.
失物招领
A
我在学校丢失了铅笔盒。
Wǒ zài xuéxiào diū shī le qiānbǐ hé.
I lost my pencil case at school.
B
你可以去失物招领处看看，也许有人捡到了你丢失的东西。
Nǐ kěyǐ qù shīwù zhāolǐng chù kànkan, yěxǔ yǒu rén jiǎn dào le nǐ diū shī de dōngxi.
You can go to the lost and found, maybe someone picked up your lost item.
Related words and contrasts
opposite
找到
zhǎo dào
to find
丢失 means to lose something, 找到 means to find it.
related
掉
diào
to drop
掉 means to drop something, often leading to 丢失 (losing it).