Meaning of "one another" in Essential English Dictionary

one another

pronoun uk /ˌwʌn əˈnʌðər/

B1 used to show that each person in a group of two or more people does something to the others:

Why can’t we all stop fighting with one another?
The children are always arguing with one another.

(Definition of “one another” from the Cambridge Essential Dictionary © Cambridge University Press)