variant of 雙|双[shuang1]

both; together (used to indicate that two people or things do the same thing simultaneously)

incomparable; matchless; unique

women's doubles (in tennis, badminton etc)

men's doubles (in tennis, badminton etc)

unrivaled (idiom); world number one; unique; unequaled

peerless; second to none (idiom)

unequalled in his time