Correct

字号

/ zìhào /
Strokes

Definition

characters and numbers (as used in a code)/alphanumeric code/serial number

Example

As a Noun

characters and numbers used to designate the serial number

1
Wénjiàn
文件
biān
le
hào
字号
méiyǒu
没有
  
?

Have these documents been registered by serial numbers?

As a Noun

font

2
Shǐyòng
使用
tóng
同一
hào
字号
xiǎo
字体

use the small type of the same font

As a Noun

name of a shop

As a Noun

shop