5
triangle(noun, three, triality, triptych, troika)
5
deuce-ace
5
triune(noun, group, three, triangle, triptych)
4
III
4
duo(side, squad, players)
4
trident(noun, three, triality)
4
3
4
ensemble(noun, company, group, band, collection)
4
set of three(noun, expression, idiom, triangle, triptych)
4
triplex(noun, three)
4
triunity(noun, group, triangle, triptych, troika)
3
duet
3
opus
3
shamrock
3
synergy
3
trefoil
3
triennium
3
trimester(noun, three)
3
trinomial
2
clover(noun, three)
11 years ago|6.3k views|share |citing 
APASmart Define. (2015). trio thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/trio/thesaurus/synonyms
ChicagoSmart Define. 2015. "trio thesaurus" https://smartdefine.org/trio/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, trio thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/trio/thesaurus/synonyms>.
MLASmart Define. "trio thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/trio/thesaurus/synonyms>