yī​hào

the first of the month

一号 一號 yī​hào
the first of the month noun
the first day of any calendar month
number one
the first person or thing in a sequence; size one in clothing or footwear; the top or best in a group
[toilet]
(slang) a euphemism for the toilet or the act of urinating
[top]
(slang) refers to the active role or "top" in a male homosexual relationship
a type or batch
(literary) a specific kind of item; a group or batch of people or things