Kyūjitai form of 正十二面体: regular dodecahedron

Kyūjitai form of 正二十面体: regular icosahedron

where there's smoke, there's fire

don't cry over spilt milk

(poetic) a mountain where the first-person speaker resides / (by extension, poetic) Synonym of 比叡山 (Hiei-zan): Mount Hiei, where Saichō erected Enryaku-ji, the first Tendai monastery

one day, 24 hours / the daytime, the period from dawn until dusk / (figuratively) a short period of time / one day, someday, an unspecified day / the first day of the month

(literally) one side / everywhere, all around, the whole area / one viewpoint, one opinion or way of thinking / the front page of a newspaper

for the time being, for the present

the basics, a general idea

to each his own; different strokes for different folks; there's no accounting for taste