Definition of Relation

Noun: relation ri'ley-shun

An abstraction belonging to or characteristic of two entities or parts together
The act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur
- sexual intercourse, intercourse, sex act, copulation, coitus, coition, sexual congress, congress, sexual relation, carnal knowledge
A person related by blood or marriage
"he has distant relations back in New Jersey";
- relative, flesh and blood
An act of narration
"he was the hero according to his own relation";
- telling, recounting
(law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time
"his attorney argued for the relation back of the amended complaint to the time the initial complaint was filed";
- relation back
(usually plural) mutual dealings or connections among persons or groups
"international relations"