three dimensions, three-dimensional

triangular prism

three years; the third year / (education) the third school year / (figuratively) a long period of time, several years

three years; triennial / three years old

three years of age, three years old

a relationship is stronger after conflict

(idiomatic, proverb) be quick on the uptake, understand the whole situation from just a few clues

Synonym of 天神七代 (Tenjin Shichidai)

a right-angled triangle

(phonetics) in Sanskrit phonology, a consonant produced using one of the three places of articulation: dorsal (/k, g, ŋ/), coronal (/t, d, n/), or labial (/p, b, m/)