|1.||[ noun ] (geology) a lump of hard consolidated mineral matter|
"he threw a rock at me"
|Related terms:||natural_object pebble stepping_stone calculus boulder outcrop crystal intrusion clastic_rock bedrock petrifaction chondrite tor sill xenolith wall_rock achondrite whin stone|
|2.||[ verb ] move back and forth in an unstable manner|
"the ship was rocking" "the tall building swayed" "the tree shook in the wind"
|Related terms:||move_back_and_forth totter swag roll nutate wag rocking_chair|
|3.||[ noun ] (geology) 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 terms:||material marble gravel fieldstone caliche shingling pudding_stone greisen pumice road_metal quartzite aphanite sedimentary_rock metamorphic_rock dolomite emery_stone metamorphic_rock lava magma igneous_rock limestone claystone sial sima calc-tufa mineral stone|
|4.||[ verb ] rock or place in or as if in a cradle|
"He cradled the infant in his arms"
|Related terms:||hold move_back_and_forth cradle|
|5.||[ noun ] (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
|6.||[ verb ] cause to move back and forth|
"rock the cradle" "rock the baby" "the wind swayed the trees gently"
|Related terms:||move rocker|
|7.||[ noun ] (music,fine art) a genre of popular music originating in the 1950s; a blend of Black rhythm-and-blues with White country-and-western|
|Synonyms:||rock_and_roll rock_music rock'n'roll rock-and-roll rock_'n'_roll|
"rock is a generic term for the range of styles that evolved out of rock'n'roll."
|Related terms:||jazz popular_music heavy_metal acid_rock art_rock punk_rock backbeat backbeat|
|8.||[ noun ] (medicine,work) United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984)|
|9.||[ noun ] (food) hard stick bright-colored stick candy typically peppermint flavored|
|10.||[ noun ] Last name, frequency rank in the U.S. is 1662|
|11.||[ noun ] (nautical) pitching dangerously to one side|
|Synonyms:||sway tilt careen|
|Related terms:||lurch swing careen|