四面體

tetrahedron

four / 4

all sides

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless

body / form / style / system / substance / to experience / aspect (linguistics)