Usage note
“号”可以表示数字编号，也常用来表示日期里的某一天。
“hào” kěyǐ biǎoshì shùzì biānhào, yě cháng yòng lái biǎoshì rìqī lǐ de mǒu yī tiān.
The word “号” can indicate a number in a sequence, and is also commonly used to say a specific day of the month in dates.
Context note
“号”这个字常用来表示数字编号或日期，比如在说几月几日的时候会用到它。
“hào” zhè ge zì cháng yòng lái biǎoshì shùzì biānhào huò rìqī, bǐrú zài shuō jǐ yuè jǐ rì de shíhou huì yòng dào tā.
The word “号” is often used to indicate a number in a sequence or a date, such as when saying a specific day of the month.
5 examples
今天是10号
Jīntiān shì shí hào
Today is the 10th.
这是你的房间号203
Zhè shì nǐ de fángjiān hào èr líng sān
This is your room number 203.
会议在14号举行
Huìyì zài shí sì hào xuézòng
The meeting will be held on the 14th.
这个月是6月25号
Zhège yuè shì liù yuè èrshí wǔ hào
This month is June 25th.
请记住你的生日日期，1987年4月30号
Qǐng zhùzhù nǐ de shēngrì rìqī, yī qiān bā qī nián sì yuè sānshí hào
Please remember your birthday date, April 30th, 1987.
5 mini stories
今天是5号，妈妈带我去图书馆借书。
Jīntiān shì wǔ hào, māma dài wǒ qù tóngbù juéshū.
Today is the 5th. Mom took me to the library to borrow books.
我在日记本上写下今天是12号。
Wǒ zài rìlì běn shàng xiěxià jīntiān shì shí èrhào.
I wrote in my diary that today is the 12th.
爸爸告诉我，今天是父亲节。
Bàba gàosu wǒ, jīntiān shì fùqin jié.
Dad told me that today is Father's Day.
我们学校的运动会是在10月25号举行的。
Wǒmen xuéxiào de huìyùn huó zài shí yuè èrshí wǔ hào xuézòng.
Our school's sports day is held on October 25th.
我生日是1月3号，每年这一天我都和家人一起庆祝。
Wǒ shēngrì shì yīyuè sān hào, měinián zhège tiān wǒ dōu hé jiārén yīqǐ zànzhù.
My birthday is on January 3rd. Every year on this day, I celebrate with my family.
Mini dialogue
你的生日是几号？
A
你的生日是几号？
Nǐ de shēngrì shì jǐ hào?
What date is your birthday?
B
我的生日是五月三号。
Wǒ de shēngrì shì wǔ yuè sān hào.
My birthday is May 3rd.
你的学号是多少？
A
你的学号是多少？
Nǐ de xuéhào shì duōshǎo?
What is your student number?
B
我的学号是十二号。
Wǒ de xuéhào shì shí'èr hào.
My student number is 12.
Related words and contrasts
similar
号码
hàomǎ
number (like phone number)
Often used together, e.g., 电话号码 (phone number).
related
日期
rìqī
date
号 can mean 'date' in dates, e.g., 五月一号 (May 1st).