(mathematics) pure mathematics

(archaic) the sky, the heavens / where the smoke collects in an old kitchen using a wood-burning stove / a shelf or shelves above the stove / (archaic) heaven

(archaic) the sky, the heavens / (archaic) heaven / (archaic) the roof of a palace

heavens, sky

the sky, the heavens / heaven / Short for 天ぷら (tenpura).

the sky, the heavens / heaven / (Buddhist god) a deva or devi / (figuratively) the gods, providence, fate / (printing, of a page) the top margin

everything

(colloquial) current boyfriend

everyone, one and all

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)