(DISAGREEMENT) [noun] [U] - disagreement or unfriendliness caused by people having different opinionsPolitics is a source of friction in our family because we all have different views.Border clashes have led to increased friction between the two countries.I had a bit of friction with my teacher yesterday.
FRICTION
Meaning of FRICTION in English
Cambridge English vocab. Кембриджский английский словарь. 2012