rock

noun

1
pitching dangerously to one side
2
United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984)
3
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.
4
hard bright-colored stick candy (typically flavored with peppermint)
5
a lump or mass of hard consolidated mineral matter
he threw a rock at me
6
(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"--Gospel According to Matthew
7
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

Also useful for “rock”:Scrabble— High-value letters — see what it scores