rock and roll

UK: /ɒkənˈrəʊl/

WordReference Random House Learner's Dictionary of American English © 2025

ˈrock and ˈroll or ˈrock & ˈroll, n. 

1. Music and Dance rock² (def. 6).

Collins Concise English Dictionary © HarperCollins Publishers::

rock and roll, rock'n'roll noun

1. a type of pop music originating in the 1950s as a blend of rhythm and blues and country and western. It is generally based upon the twelve-bar blues, the first and third beats in each bar being heavily accented
2. (as modifier): the rock-and-roll era
3. dancing performed to such music, with exaggerated body movements stressing the beat

verb

1. (intransitive) to perform this dance

rock and roller, rock'n'roller noun

WordReference Random House Unabridged Dictionary of American English © 2025

rock-and-roll  (rok′ən rōl′), n. 

1. Music and Dance rock-'n'-roll.