4
terzetto
4
third(treble, triplication)
4
tierce
4
triangle(noun, trio, leash, triplet, triptych)
4
trilogy(noun, trio, leash, triangle, triplet)
4
triplex
4
triptych(noun, trio, leash, triangle, triplet)
4
triunity(noun, group, trio, triangle, triptych)
3
trinal(treble, triplication)
2
deuce-ace
2
lead
2
tern(noun, triplication)
2
tether
1
benefical
1
clover
1
collar
1
deltoid
1
fan-shaped
1
set of three(noun, expression, idiom, trio, leash)
1
shamrock
11 years ago|2.6k views|share |citing 
APASmart Define. (2015). trine thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/trine/thesaurus/synonyms
ChicagoSmart Define. 2015. "trine thesaurus" https://smartdefine.org/trine/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, trine thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/trine/thesaurus/synonyms>.
MLASmart Define. "trine thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/trine/thesaurus/synonyms>