badmouthகுறைசொல்லுkuṟaicollu(kore sollu)(3c tr)express censure of; decry; disparage; speak disparagingly (of); cf. also belittle, denigrate, deprecate, play down, trivialize, make light of, undervalue, underrate; ridicule, deride, mock, scorn
Usage:
எப்பொழுதும் மற்றவர்களைப் பற்றிக் குறைசொல்லிக்கொண்டே இருக்காதேeppoḻutum maṟṟavarkaḷaip paṟṟik kuṟaicollikkoṇṭē irukkātē
eppavum mattavangaḷe patti koresolliṭṭee irukkaade
Don't keep badmouthing other people all the time.
knockகுறைசொல்லுkuṟaicollu(kore sollu)(3c tr)blame, criticize, or carp at; make disparaging remarks about; speak slightingly of; depreciate, scorn; belittle, denigrate, play down, trivialize, make light of, undervalue, minimize, underrate; ridicule
Usage:
உனக்கு அவனைப் பிடிக்கவில்லை என்பதற்காக அவன் நாவலைக் குறை சொல்லாதேuṉakku avaṉaip piṭikkavillai eṉpataṟkāka avaṉ nāvalaik kuṟai collātē
onakku avane piḍikkalengradukkaaha avan naavale kore sollaadee
Don't knock his novel just because you happen to not like him.
