This is the 3219th most frequent Russian word.
нести
"Нести" - to carry.
The verb 'несу' is used here to indicate the action of carrying something physically.
Я несу сумку домой.
I am carrying a bag home.
The verb 'несёт' is metaphorically used to indicate bearing a burden or responsibility.
Она несёт ответственность за проект.
She bears the responsibility for the project.
The verb 'несёт' expresses the idea of bringing or delivering something.