MDBG Mobile Chinese English Dictionary (iPhone, Android, Windows Phone)

兴亡	xīng wáng	to flourish and decay / rise and fall
腐化	fǔ huà	to rot / to decay / to become corrupt
蜕变	tuì biàn	to transform / to morph / to degenerate / metamorphosis / transmutation / transformation / decay / degeneration
陨落	yǔn luò	to fall down / to decay / to fall from the sky / to die
衰败	shuāi bài	to decline / to wane / to decay / to deteriorate
劀	guā	(archaic) to scrape away decayed flesh or pus
凋零	diāo líng	withered / wilted / to wither / to fade / to decay
防龋	fáng qǔ	to prevent tooth decay / anti-caries
衰	shuāi	(bound form) to decay; to decline; to wane
颓败	tuí bài	to decay / to decline / to become corrupt
颓	tuí	to crumble / to collapse / to decline / to decay / decadent / dejected / dispirited / balding
朽蠹	xiǔ dù	to decay and be eaten by worms etc / to overhoard grain so that it rots