firmness of character; indomitable spirit

sand or small particles of stone

बालू या छोटे पत्थरों के कण

English Usage: The road was covered in grit after the construction work.

Hindi Usage: निर्माण कार्य के बाद सड़क पर बालू फैला हुआ था।

to clench, as the teeth

दांतों को भींचना

English Usage: He had to grit his teeth and finish the task.

Hindi Usage: उसे दांतों को भींचकर काम पूरा करना पड़ा।