| Noun | 1. | mankind - all of the inhabitants of the earth; "all the world loves a lover"; "she always used `humankind' because `mankind' seemed to slight the women"group, grouping - any number of entities (members) considered as a unit people - (plural) any group of human beings (men or women or children) collectively; "old people"; "there were at least 200 people in the audience" | |