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noun
1.
Also called runner. one of the curved pieces on which a cradle or a rocking chair, rocks.
2.
rocking chair.
3.
a rock-‘n’-roll song:
She sang a ballad and followed that with two of her well-known rockers.
4.
any of various devices that operate with a rocking motion.
5.
Graphic Arts. a small steel plate with one curved and toothed edge for roughening a copperplate to make a mezzotint.
6.
Mining. cradle (def 13).
7.
an ice skate that has a curved blade.
8.
a performer or fan of rock music.
Idioms
9.
off one’s rocker, Slang. insane; crazy:
You’re off your rocker if you think I’m going to climb that mountain.
verb (used without object)
1.
to move or sway to and fro or from side to side.
2.
to be moved or swayed powerfully with excitement, emotion, etc.
3.
Mining. (of sand or gravel) to be washed in a cradle.
4.
to dance to or play rock music.
5.
(of popular music) to have the driving beat characteristic of rock.
6.
Slang. to be very good, impressive, exciting, or effective:
This show really rocks.
verb (used with object)
7.
to move or sway to and fro or from side to side, especially gently and soothingly:
Oh, look! Her big brother is rocking the baby to sleep.
8.
to lull in security, hope, etc.
9.
to affect deeply; stun; move or sway powerfully, as with emotion:
Everyone in the courtroom was rocked by the verdict.
10.
to shake or disturb violently:
A thunderous explosion rocked the waterfront.
11.
Slang.

to stir up; animate:
We’re gonna rock this joint tonight!
to use, wear, or display in a showy, self-confident manner or to great effect: Only you could rock that hat!
The game rocks some amazing new features.

12.
Graphic Arts. to roughen the surface of (a copperplate) with a rocker preparatory to scraping a mezzotint.
13.
Mining. cradle (def 22).
noun
14.
a rocking movement:
the gentle rock of the boat.
15.
rock-‘n’-roll (def 1).
adjective
16.
rock-‘n’-roll (def 2).
Idioms
17.
rock the boat, Informal. to disrupt the smooth functioning or routine of something:
Don’t rock the boat by demanding special treatment from management.
noun
1.
any of various devices that transmit or operate with a rocking motion See also rocker arm
2.
another word for rocking chair
3.
either of two curved supports on the legs of a chair or other article of furniture on which it may rock
4.
a steel tool with a curved toothed cage, used to roughen the copper plate in engraving a mezzotint
5.
(mining) another word for cradle (sense 9)
6.

an ice skate with a curved blade
the curve itself

7.
(skating)

a figure consisting of three interconnecting circles
a half turn in which the skater turns through 180°, so facing about while continuing to move in the same direction

8.
a rock-music performer, fan, or song
9.
(Brit) an adherent of a youth movement rooted in the 1950s, characterized by motorcycle trappings Compare mod1
10.
(slang) off one’s rocker, crazy; demented
noun
1.
(geology) any aggregate of minerals that makes up part of the earth’s crust. It may be unconsolidated, such as a sand, clay, or mud, or consolidated, such as granite, limestone, or coal See also igneous, sedimentary, metamorphic
2.
any hard mass of consolidated mineral matter, such as a boulder
3.
(mainly US & Canadian, Austral) a stone
4.
a person or thing suggesting a rock, esp in being dependable, unchanging, or providing firm foundation
5.
(Brit) a hard sweet, typically a long brightly-coloured peppermint-flavoured stick, sold esp in holiday resorts
6.
(slang) a jewel, esp a diamond
7.
short for rock salmon
8.
(pl) (slang) the testicles
9.
(slang) another name for crack (sense 29)
10.
between a rock and a hard place, having to choose between two equally unpleasant alternatives
11.
on the rocks

in a state of ruin or destitution
(of drinks, esp whisky) served with ice

verb
1.
to move or cause to move from side to side or backwards and forwards
2.
to reel or sway or cause (someone) to reel or sway, as with a violent shock or emotion
3.
(transitive) to shake or move (something) violently
4.
(intransitive) to dance in the rock-and-roll style
5.
(mining) to wash (ore) or (of ore) to be washed in a cradle
6.
(transitive) to roughen (a copper plate) with a rocker before engraving a mezzotint
7.
(transitive) (slang, mainly US) to impress by wearing (an item of clothing) or playing (a musical instrument): She can still rock a miniskirt, He rocks a guitar like nobody’s business
8.
(informal) rock the boat, to create a disturbance in the existing situation
noun
9.
a rocking motion
10.
short for rock and roll
11.
Also called rock music. any of various styles of pop music having a heavy beat, derived from rock and roll
noun the Rock
1.
an informal name for Gibraltar
2.
a Canadian informal name for Newfoundland

Rock (rŏk), John. 1890-1984.

American gynecologist and obstetrician who helped develop (1954) the first effective oral contraceptive.
rock
(rŏk)

A relatively hard, naturally occurring mineral material. Rock can consist of a single mineral or of several minerals that are either tightly compacted or held together by a cementlike mineral matrix. The three main types of rock are igneous, sedimentary, and metamorphic.

A piece of such material; a stone.

rocker 1
rocker 2
rock

(Heb. tsur), employed as a symbol of God in the Old Testament (1 Sam. 2:2; 2 Sam. 22:3; Isa. 17:10; Ps. 28:1; 31:2,3; 89:26; 95:1); also in the New Testament (Matt. 16:18; Rom. 9:33; 1 Cor. 10:4). In Dan. 2:45 the Chaldaic form of the Hebrew word is translated “mountain.” It ought to be translated “rock,” as in Hab. 1:12 in the Revised Version. The “rock” from which the stone is cut there signifies the divine origin of Christ. (See STONE.)

see: off one’s head (rocker)