26 entries under noun topic. ×

14
quadruplicate(adjective, quadruplicate, quadruplication)
6
four(adjective, four)
5
quartette
5
quaternary
4
quadruplet
4
quad
3
quartet
3
quaternion
2
tetrad
1
court
1
distance
1
foursome
1
quadrangle
1
quadrigeminal
1
quadripartition
1
quadrivium
1
quadrumvirate
1
quadruplets
1
quadruplication
1
quaternity
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APASmart Define. (2016). quadruple thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/quadruple/thesaurus/synonyms
ChicagoSmart Define. 2016. "quadruple thesaurus" https://smartdefine.org/quadruple/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, quadruple thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/quadruple/thesaurus/synonyms>.
MLASmart Define. "quadruple thesaurus" 5 February 2016. Web. 28 September 2026. <https://smartdefine.org/quadruple/thesaurus/synonyms>