Which should you use, among or between? Among is traditionally used for saying that something involves three or more people or things. Between is traditionally used for saying that something involves two people or things.
||Among the two of us, we can solve
||Between the two of us, we can solve
Among is also used for saying what happens within a particular group of people.
||They were arguing among themselves.
Nowadays, it is acceptable to use between for describing a relationship or difference between each of the pairs in a group of three or more people or things.
||The North American Free Trade Agreement is an agreement between Canada, Mexico, and the United States.