Nouns

(n)sociable, social, mixera party of people assembled to promote sociability and communal activity

Adjectives

(a)social, societalrelating to human society and its members“social institutions”, “societal evolution”, “societal forces”, “social legislation”
(a)socialliving together or enjoying life in communities or organized groups“a human being is a social animal”, “mature social behavior”
(a)socialrelating to or belonging to or characteristic of high society“made fun of her being so social and high-toned”, “a social gossip colum”, “the society page”
(s)socialcomposed of sociable people or formed for the purpose of sociability“a purely social club”, “the church has a large social hall”, “a social director”
(s)socialtending to move or live together in groups or colonies of the same kind“ants are social insects”
(s)socialmarked by friendly companionship with others“a social cup of coffee”