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”).

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

(dialect, Tsugaru) a ruby (gemstone)

小幅: single breadth, narrow range

小屋: cottage, hut, cabin; playhouse

横幅: horizontal breadth or width

(idiomatic) to pass an exam

(idiomatic, especially in telegrams) Used in reference to an exam success.

サクラメント, 桜面都, 桜府: Sacramento (a city in Sacramento, California, United States) / サクラメント, 桜面都: Sacramento (a county of California, United States)

(Christianity) a sacrament