1
triangle
a three-sided figure
2
triathlon
a race that combines three activities - swimming, bicycling and running
3
triceratops
a dinosaur with three horns - two long horns above the eyes and one short horn on the nose
4
tricycle
a vehicle with three wheels
5
trilateral
having or involving three sides, countries or parties
6
trilingual
able to speak three different languages
7
trilogy
three related plays or novels
8
trio
a group of three people or things
9
tripod
a three-legged stool, table or stand used to hold things such as a camera
10
trisect
to cut into three parts