plural of relational community

The act of sexual intercourse. / Sexual activities between individuals.

A person who is relation through birth, as opposed to marriage or adoption.

Corresponding relation.

(set theory) A binary relation that is reflexive, symmetric and transitive.

(set theory, order theory, "on" a set A) A subset of the Cartesian product A×A (the set of ordered pairs (a, b) of elements of A).

The professional dissemination and management of information by a person or an organization to the public with the purpose of creating a favorable public image.

(databases) A database consisting of separate tables, having explicitly defined relationships, and whose elements may be selectively combined as the results of queries.

Diplomatic intercourse between nations, including the mutual presence of diplomatic missions.

(idiomatic) Behaviour of a sexual nature between one or more individuals.