HSK V7-9
Correct

编号

/ biānhào / 
Strokes

Definition

to number/numbering/serial number

Example

As a Verb
number
1
Gěi
给
shū
书
biānhào
编号

number the books

As a Noun
serial number
2
Zhànghù
账户
biānhào
编号

account number