rocker

noun17

1. •
   A musician who plays rock music.
2. •
   A rocking chair.

   • A few days before he turned 80 He was sittin' out back in a rocker — 2021
3. •
   Someone passionate about rock music.
4. •
   (informal) A rock music song.

   • "Girls & Boys" is […] also a tart, sneering rocker, full of ingenious musical gestures […] — 2010
5. •
   (UK) A member of a British subculture of the 1960s, opposed to the mods, who dressed in black leather and were interested in 1950s music.
6. •
   A curved piece of wood attached to the bottom of a rocking chair or cradle that enables it to rock back and forth.

   • "By Jove, old boy," said Cripps, assisting the curate up, "should have warned you about that chair - the infernal rockers are sawn off short, you know." — 1913
7. •
   Any implement or machine working with a rocking motion, such as a trough mounted on rockers for separating gold dust from gravel, etc., by agitation in water.
8. •
   A tool with small teeth that roughens a metal plate to produce tonality in mezzotints.
9. •
   A kind of electrical switch with a spring-loaded actuator.
10. •
    A rock shaft.
11. •
    A curved line accompanying the chevrons that denote rank, qualifying the rank with a grade.

    • Cadet Sergeant First Class: 3 Chevrons and 2 rockers. Cadet Master Sergeant: 3 Chevrons and 3 rockers. Cadet First Sergeant: 3 Chevrons, 3 rockers with a diamond inset. — 2000
12. •
    The lengthwise curvature of a surfboard. (More rocker is a more curved board.)

    • All modern surfboards share a similar rocker design — Bruce Jones https://web.archive.org/web/20051212041317/http://www.brucejones.com/longboar.htm
13. •
    One who rocks something.

    • It was I Sir (said the Rocker) who had the honour (some thirty years since) to attend on your Highness in your Infancie, […] — 1660
14. •
    A rocking horse.
15. •
    A skate with a curved blade, somewhat resembling in shape the rocker of a cradle.
16. •
    A rocker board.
17. •
    The breve below as in ḫ.

    • Like the editors of other Elamite texts, I omit the diacritic rocker from h in Elamite and from H in logograms in Elamite texts. I retain the rocker in ḫ and Ḫ in Sumerian and Akkadian. — 1984