List of trefoil synonyms and trefoil related words.
clover, deuce-ace, leash, set of three, shamrock, tercet, ternary, ternion, terzetto, three, threesome, tierce, trey, triad, trialogue, triangle, tricorn, trident, triennium, trihedron, trilogy, trimester, trine, trinity, trinomial, trio, triphthong, triple crown, triple threat, triplet, triplopy, tripod, triptych, trireme, triseme, triskelion, trisul, triumvirate, triunity, trivet, troika