470 entries under noun topic. ×

6
brother(kinship, consanguinity, sibling)
6
carnal knowledge(expression, idiom)
6
chronicle(feature, report, account, record)
6
coition
6
interdependence(connection, link, connect, association)
6
relations
6
sexual intercourse(expression, idiom)
6
sister(kinship, consanguinity, sibling)
5
concern(worry, regard, anxiety, interest)
5
congress
5
contact(connection, link, association, tie)
5
copulation
5
correspondence(empathy, agreement, connection, harmony)
5
cousin(kinship, consanguinity)
5
history(feature, report, account, record)
5
interconnection(connection, link, connect, association)
5
linkage(connection, link, connect, association)
5
proportion(view, connection, arrangement, link)
5
rapport(empathy, connection, link, tie)
5
sexual congress(expression, idiom)
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APASmart Define. (2015). relation thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/relation/thesaurus/synonyms
ChicagoSmart Define. 2015. "relation thesaurus" https://smartdefine.org/relation/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, relation thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/relation/thesaurus/synonyms>.
MLASmart Define. "relation thesaurus" 22 December 2015. Web. 30 September 2026. <https://smartdefine.org/relation/thesaurus/synonyms>