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trial balance
trial balloon
trial by fire
trial court
trial lawyer
trial of strength
trial run
triallist
trialogue
triamcinolone
triangle
triangular
triangulate
triangulation
Triangulum
Triangulum Australe
triarchy
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tri-

tri-


prefix 
Definition:
 
three, third
trilateral

[< Latin and Greek, form of Latin tres, Greek treis "three" < Indo-European]
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