triangular pyramid, tetrahedron

three generations / the third generation

(Buddhism) the "three lives", namely 前世 (zense, “previous life”), 現世 (gense, “current life”) and 来世 (raise)/後世 (gose, “next life”) / three generations, as in parents, children and grandchildren

three sixes; eighteen

(traditional Chinese medicine) triple burner

Kyūjitai form of 三蔵 (“Tripitaka”)

a calico cat's fur, featuring the three colors of white, black, and orange / Short for 三毛猫 (mikeneko, “calico cat”).

number three

Used to express surprise or frustration: oh my God; good Lord

three dimensions, three-dimensional