noun an abstraction belonging to or characteristic of two entities or parts together.
noun sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur.
— synonyms: sexual_intercourse, intercourse, sex_act, copulation, coitus, coition, sexual_congress, sexual_relation
noun a person related by blood or marriage.
— synonyms: relative
noun an act of narration.
— synonyms: telling, recounting
noun (law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time.
— synonyms: relation_back
noun (usually plural) mutual dealings or connections among persons or groups.