Meaning of GRIT in English
1》 small loose particles of stone or sand.
2》 (also ~stone ) a coarse sandstone.
3》 courage and determination.
■ verb ( ~s , ~ting , ~ted )
1》 spread ~ on (an icy road).
2》 move with or make a grating sound.
~ one's teeth clench one's teeth, especially when faced with something unpleasant.
↘resolve to do something difficult.
OE grēot , of Gmc origin; related to groats .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004