Noun

• S: (n) relation (an abstraction belonging to or characteristic of two entities or parts together)
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) sexual intercourse, intercourse, sex act, copulation, coitus, coition, sexual congress, sexual relation, relation, carnal knowledge (sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur)
• S: (n) relative, relation (a person related by blood or marriage)
• S: (n) relation, telling, recounting (an act of narration)
• S: (n) relation back, relation ((law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time)
• S: (n) relation ((usually plural) mutual dealings or connections among persons or groups)