a person who performs, dances to, or enjoys rock music.
▸a rock song.
▸Brit. a young person, especially in the 1960s, belonging to a subculture characterized by leather clothing, riding motorcycles, and a liking for rock music.
a rocking chair.
a curved bar or similar support on which something such as a chair can rock.
▸a rocking device forming part of a mechanism.
the amount of curvature in the longitudinal contour of a boat or surfboard.