See relation in Webster's New World Roget's A-Z Thesaurus II
noun
A logical or natural association between two or more things:
connection, correlation, interconnection, interdependence, interrelationship, link, linkage, relationship, tie-in. (Informal) hookup. See connectA person connected to another person by blood or marriage:
kin, kinsman, kinswoman, relative. See kin
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