(physics) an atomic nucleus

a quadrilateral (polygon having four sides)

vision; sense of sight

eligible, qualified

eligibility, qualification (possessing a license etc.,)

Four-Corner

proof of qualification

The hiragana syllable こ (ko). Its equivalent in katakana is コ (ko). It is the tenth syllable in the gojūon order; its position is か行お段 (ka-gyō o-dan, “row ka, section o”).

此: (derogatory) you / 是: (humble) you

(vulgar, slang) female genitals: a cunt, a pussy / (Internet slang, derogatory, offensive) a woman