to defeat; to smash; to rout

(bound form) (of floodwaters) to break through a dam or dike; (bound form) to break through (a military encirclement); (bound form) to be routed; to be overrun; to fall to pieces; (bound form) to fester; to ulcerate

used in 潰膿|溃脓[hui4 nong2]; Taiwan pr. [kui4]

to collapse on the first encounter; to give way at once

nervous breakdown