1,No. [No.]: claim, horn, command, number, pulse, trumpeter, number, extra number, call, password, number, patient number, professional title, symbol, registration, etc.

2.No. [há o]: howl, wail, whine, wail, howl, lament, line number, cry, call sign, etc.

3.No.: Hao ?ㄠˊ. Original meaning: Cry loudly. Such as: wailing, wailing, crying. Extended meaning: extended meaning refers to "calling loudly with a long voice", such as call sign and howl.

4. serial number: Hao ㄏㄠˋ. extended meaning: by shouting loudly, extended meaning refers to "orders, orders", such as issuing numbers, issuing orders and calling numbers. Extended meaning: extended meaning refers to "marks and signs" Such as: signal, password. Extension: Extension refers to "name". Such as: country number, year number and font size. Yi Yan: Also used as a surname.