A word that, contrary to popular belief, is a real word. 'Persons' counts individuals, 'People' is more of a collective noun.
This elevators can carry 10 persons.
A douchy word that is used as a plural form for the word person when everyone knows that the word "people" is the plural form of person.
Student: ... And all the persons in that village died a horrible death.
Teacher:Please just use the fucking word "people" god damn