As a noun, "grit" has several meanings:
* Small particles of sand, stone, or other hard material. *Example: "The road was covered in grit from the recent storm."*
* Courage, determination, and perseverance. *Example: "It takes grit to overcome adversity."*
As a verb, "grit" means:
* To grind or crush into small particles. *Example: "Grit the wheat into flour."*
The meaning of "grit" will depend on the context in which it is used.