1.Definition: (figurative) someone who is strong and stable and dependable

"He was her rock during the crisis", "Thou art Peter, and upon this rock I will build my church"

Category: People

2.Definition: a genre of popular music originating in the 1950s; a blend of black rhythm-and-blues with white country-and-western

"Rock is a generic term for the range of styles that evolved out of rock'n'roll."

Category: General

3.Definition: a lump or mass of hard consolidated mineral matter

"He threw a rock at me"

Related Noun(s):stone

Category: Objects

4.Definition: material consisting of the aggregate of minerals like those making up the Earth's crust

"That mountain is solid rock", "Stone is abundant in New England and there are many quarries"

Related Noun(s):stone

Category: General

5.Definition: pitching dangerously to one side

Related Noun(s):careen, sway, tilt

Category: General

6.Definition: United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984)

Related Noun(s):john rock

Category: People