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A symbol ([doublesharp]) placed before a note to indicate that it is to be raised by two semitones.
(Music, other) music
a. an accidental that raises the pitch of the following note by two semitones. Usual symbol:
b. a note affected by this accidental
(Music, other) (immediately postpositive) denoting a note of a given letter name raised in pitch by two semitones
a symbol that raises by two semitones the pitch of the following note.