tri-

1. a combining form meaning “three,” used in the formation of compound words:

   triacid; triatomic.

tri-

prefix

1. three or thrice

   trigon

   triaxial

   trisect

2. occurring every three

   trimonthly

Word History and Origins

Origin of tri-¹

Middle English < Latin, combining form representing Latin trēs, tria, Greek treîs, tría three

Word History and Origins

Origin of tri-¹

from Latin trēs , Greek treis

Example Sentences

Since then, competitions such as the Tri and Four Nations have replaced genuine Test series with the Aussies.

From BBC

With the help of a mysterious glowing ball of energy named Tri, Zelda is gifted the ability to travel into these rifts and heal them.

From Los Angeles Times

El Tri has won fewer than half its games since Qatar, was eliminated in the first round of this summer’s Copa América and drew just 25,271 for last week’s Rose Bowl match against New Zealand, its smallest crowd for a U.S. friendly in nearly three years.

From Los Angeles Times

They’ll be together on the Mexican bench for the first time Saturday when El Tri faces New Zealand at the Rose Bowl.

From Los Angeles Times

Trained as a rifleman, Anderson found himself in Vietnam’s Quang Tri province.

From Los Angeles Times