The dash is a punctuation mark that is similar to a hyphen or minus sign, but differs from both of these symbols primarily in length and function. The most common versions of the dash are the en dash (–) and the em dash (—), named for the length of a typeface's lower-case n and upper-case M respectively.
近义、反义、联想词
近义词
n.
punctuation, punctuation mark
英英词典
swung dash n.
a punctuation mark used in text to indicate the omission of a word