rot
vb
1 break down, corrode, corrupt, crumble, decay, decompose, degenerate, deteriorate, disintegrate, fester, go bad, moulder, perish, putrefy, spoil, taint
2 decline, degenerate, deteriorate, languish, waste away, wither away
n
3 blight, canker, corrosion, corruption, decay, decomposition, deterioration, disintegration, mould, putrefaction, putrescence
4 balderdash, balls (taboo slang) bilge (informal) bosh (informal) bull (slang) bullshit (taboo slang) bunk (informal) bunkum or buncombe (chiefly U.S.) claptrap (informal) cobblers (Brit. taboo slang) codswallop (Brit. slang) crap (slang) drivel, eyewash (informal) flapdoodle (slang) garbage (chiefly U.S.) guff (slang) hogwash, hokum (slang, chiefly U.S. & Canad.) horsefeathers (U.S. slang) hot air (informal) moonshine, nonsense, pap, piffle (informal) poppycock (informal) rubbish, shit (taboo slang) stuff and nonsense, tommyrot, tosh (slang, chiefly Brit.) trash, tripe (informal) twaddle