In
linguistics,
clusivity is a grammatical distinction between
inclusive and
exclusive first-person pronouns and
verbal morphology, also called
inclusive "we" and
exclusive "we". Inclusive "we" specifically includes the
addressee (that is, one of the words for "we" means "you and I"), while exclusive "we" specifically excludes the addressee (that is, another word for "we" means "he/she/they and I, but not you"), regardless of who else may be involved. While imagining that this sort of distinction could be made in other persons (particularly the second) is straightforward, in fact the existence of second-person clusivity (you vs. you and them) in natural languages is controversial and not well attested.