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noun
1.
a large mass of stone forming a hill, cliff, promontory, or the like.
2.
Geology.

mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable quantities in nature, as by the action of heat or water.
a particular kind of such matter:
igneous rock.

3.
stone in the mass:
buildings that stand upon rock.
4.
a stone of any size.
5.
something resembling or suggesting a rock.
6.
a firm foundation or support:
The Lord is my rock.
7.
Chiefly British. a kind of hard candy, variously flavored.
8.
rock candy.
9.
Often, rocks. Slang.

a piece of money.
a dollar bill.

10.
Slang.

a diamond.
any gem.

11.
Slang.

crack (def 33).
a pellet or lump of crack.

Idioms
12.
between a rock and a hard place, between undesirable alternatives.
13.
get one’s rocks off, Slang: Vulgar. to have an orgasm.
14.
on the rocks,

Informal. in or into a state of disaster or ruin:
Their marriage is on the rocks.
Informal. without funds; destitute; bankrupt.
(of a beverage, especially liquor or a cocktail) with, or containing, ice cubes:
Scotch on the rocks; a vodka martini on the rocks.

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.
striped bass.
noun
1.
a male given name.
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.

rocks
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.)