number one

== English == === Etymology === Piecewise doublet of numero uno. === Pronunciation === === Adjective === number one (not comparable) (idiomatic) First; foremost; best, often used after its headword. (US, law enforcement, slang) Black, African-American. ==== Translations ==== === Noun === number one (plural number ones) The most important person, the one who is in charge. Someone who is top of a ranking, who is ranked first. Oneself, being considered foremost, as by an egoist. (childish, euphemistic) Urine; urination. (music) The single that has sold the most in a given period. (soccer) The main goalkeeper of a team, so-called because they wear the number 1 on the back of their kit. (cricket) The batsman who opens the batting. A first lieutenant. (theater) A large town where theatrical performances may expect to achieve success. Used other than figuratively or idiomatically: see number,‎ one. ==== Coordinate terms ==== number two (especially regarding the urination sense), number three, and so on ==== Derived terms ==== do number one, go number one look out for number one number one with a bullet Christmas number one ==== Translations ====