friction Synonyms

detrition rubbing clash grating rasping renitency resentment resistance resistibility rivalry rub quarreling oppugnancy grinding hatred hostility incompatibility incompatibleness inharmoniousness inharmony kilowatt massage opposition schism scraping wearing away difference of opinion atmospherics turf war quarrelsomeness frottage ill feeling infighting outercourse wrangling warfare voltaism squabbling strife stroking suant tension traction tractive trituration voltage radioactivity frictional abrasion bitterness