What does '*a' represents in line 3

I have been trying to figure out whats the use of ‘*a’ in line 3.

bool isSorted(int *a, int n, int i)

What does * represents? I can’t recall whats its use and what it is called.

Hi @ayushkotwar2002_78a27ac2b05189a5 that’s how u say to a function to accept array as parameter