The double hyphen (＝, ゠, or ⸗) is a punctuation mark that consists of two parallel hyphens. It is not to be confused with two consecutive hyphens (--), which usually represents an em dash (—) or en dash (–). In order to avoid its being confused with the equals sign (=), the double hyphen is often sheared slightly.
Famous quotes containing the word double:
“The obsession with suicide is characteristic of the man who can neither live nor die, and whose attention never swerves from this double impossibility.”
—E.M. Cioran (b. 1911)