rock

nouns

a lump or mass of hard consolidated mineral matter
"he threw a rock at me"
is derived from
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"
(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
is a type of (narrower)
a person who is good to other people
hard bright-colored stick candy (typically flavored with peppermint)
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."
pitching dangerously to one side
is derived from

verbs

move back and forth or sideways
"the ship was rocking"; "the tall building swayed"; "She rocked back and forth on her feet"
is derived from
cause to move back and forth
"rock the cradle"; "rock the baby"; "the wind swayed the trees gently"
is derived from
is derived from