(once) again; indicates the recurrence or continuation of an action or state (often of a negative or undesirable nature)

indicates that several qualities or conditions exist at the same time; both... and...; as well as

Used in negative sentences or rhetorical questions to add emphasis, often expressing impatience or defensiveness

Moreover; additionally; indicates a further step in meaning or an addition to a range

Used to express a slight transition or contrast, meaning "but" or "on the other hand"

Used between a whole number and a fraction or a smaller unit to indicate addition; and

(bound form) used at the end of a letter to indicate a postscript, similar to "P.S."

The 29th radical in the system of 214 Chinese radicals

a Chinese surname