RELATION

An abstraction belonging to or characteristic of two entities or parts together

Sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur

A person related by blood or marriage

Example: "Police are searching for relatives of the deceased"

An act of narration

Example: "He was the hero according to his own relation"

(law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time

Example: "His attorney argued for the relation back of the amended complaint to the time the initial complaint was filed"

(usually plural) mutual dealings or connections among persons or groups

Example: "International relations"