rock 'n' roll, rock and roll, rock music, rock'n'roll, rock-and-roll, rock - a genre of popular music originating in the 1950s; a blend of Black rhythm-and-blues with White country-and-western; "rock is a generic term for the range of styles that evolved out of rock'n'roll."

rock 'n' roll, rock and roll, rock music, rock'n'roll, rock-and-roll, rock - a genre of popular music originating in the 1950s; a blend of Black rhythm-and-blues with White country-and-western; "rock is a generic term for the range of styles that evolved out of rock'n'roll."

musical rhythm, rhythm, beat - the basic rhythmic unit in a piece of music; "the piece has a fast rhythm"; "the conductor set the beat"