2
quadruplets
2
quadruplicates
2
quaternaries(noun, adjective)
1
manifolds
1
multiples
1
quads
0
augments
0
doubles
0
four-sided
0
four-square
0
four-way
0
four-ways
0
multiplication
0
multiplies
0
quadrumvirates
0
quadrupling
0
quartets
0
squares
0
tetrads(noun, adjective)
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APASmart Define. (2013). quadruples thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/quadruples/thesaurus/synonyms
ChicagoSmart Define. 2013. "quadruples thesaurus" https://smartdefine.org/quadruples/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, quadruples thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/quadruples/thesaurus/synonyms>.
MLASmart Define. "quadruples thesaurus" 18 May 2013. Web. 20 September 2026. <https://smartdefine.org/quadruples/thesaurus/synonyms>