nous and on

Question

I don't understand what the difference is exactly between nous and on

Accepted Answer

On is the impersonal third person, like "one" is in English.
On ne devrait pas parler la bouche pleine. -- One shouldn't talk with full mouth.
In spoken French, on is also frequently used as a colloquial replacement for nous.
On va au cinéma? -- Are we going to the movies?