Usage note
知道用来表示你对某事了解或明白。
zhīdào lái yòng bǎo shì nǐ duì mǒu shì liǎng huò míng白了。
知道 is used to indicate that you understand or know something.
Context note
知道常用于日常对话中，比如询问或确认某事是否了解。
zhīdào cháng yòng yú rì cháng huà huà zhōng, bǐ 如此，比如询问或确认某事是否了解。
知道 is commonly used in daily conversations, such as when asking or confirming whether you understand something.
5 examples
你知道今天是星期几吗？
nǐ zhī dào jīn tiān shì xīng qī jǐ ma？
Do you know what day of the week it is today?
我知道了，谢谢。
wǒ zhī dào le， xiè xiè。
I understand now, thank you.
他告诉我他知道答案。
tā gào sù wǒ tā zhī dào dá àn。
He told me that he knows the answer.
你不知道这件事吗？
nǐ bù zhī dào zhè jiàn shì ma？
Don't you know about this thing?
我告诉他我知道时间很重要。
wǒ gào sù tā wǒ zhī dào shí jiān hěn zhòng yào。
I told him I know time is important.
5 mini stories
妈妈知道今天是你的生日，所以准备了惊喜。
mā ma zhī dào jīn tiān shì nǐ de shēng rì， suǒ yǐ zhǔn bèi le jīng xǐ。
Mom knows today is your birthday, so she prepared a surprise.
老师知道你很聪明，所以给你布置了一道难题。
lǎo shī zhī dào nǐ hěn cōng ming， suǒ yǐ gěi nǐ bù zhì le yí dào nán tí。
The teacher knows you are very smart, so he gave you a difficult problem to solve.
朋友知道我累了，给我泡了杯茶。
péng yǒu zhī dào wǒ lèi le， gěi wǒ pào le bēi chá。
My friend knew I was tired and made me a cup of tea.
爸爸知道我想去公园玩，带我去了一趟。
bà ba zhī dào wǒ xiǎng qù gōng yuán wán， dài wǒ qù le yí tàng。
Dad knew I wanted to go to the park, so he took me there.
妹妹知道哥哥喜欢看科幻电影，给他买了一张票。
mèi mei zhī dào gē ge xǐ huan kàn kē huàn diàn yǐng， gěi tā mǎi le yì zhāng piào。
Sister knew brother liked watching science fiction movies and bought him a ticket.
Mini dialogue
问时间
A
你知道现在几点吗？
Nǐ zhīdào xiànzài jǐ diǎn ma?
Do you know what time it is now?
B
我知道，快三点了。
Wǒ zhīdào, kuài sān diǎn le.
I know, it's almost three o'clock.
明天安排
A
你知道明天有体育课吗？
Nǐ zhīdào míngtiān yǒu tǐyùkè ma?
Do you know if there is PE class tomorrow?
B
我不知道，我们问问老师吧。
Wǒ bù zhīdào, wǒmen wèn wen lǎoshī ba.
I don't know, let's ask the teacher.
Related words and contrasts
contrast
认识
rènshi
to know (a person)
知道 means to know a fact. 认识 means to know or recognize a person.
related
懂
dǒng
to understand
知道 means to know something. 懂 means to understand it deeply.