溃决

溃决	kuì jué	(of a dike or dam) to burst
溃	huì	used in 溃脓 / Taiwan pr. [kui4]
溃	kuì	(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
决	jué	to decide / to determine / to execute (sb) / (of a dam etc) to breach or burst / definitely / certainly