to undergo irregular or violent changes, especially in financial markets or social conditions

cerebral concussion

to ripple or move in a wave-like motion, typically referring to water

to resound, reverberate, or echo within a space or area

to dash against or surge (typically of water or waves)

to wave, flutter, or drift in the air or wind

to swing (on a swing)

completely empty and deserted

soul-stirring or deeply moving, specifically when describing the impact of a drama, poem, or work of art

to brainstorm

to shake, rock, or sway unsteadily

to hang suspended or swing loosely