SloanePronunciation: /sləʊn/ (also Sloane Ranger)Definition of Sloane noun British informal a fashionable upper-class young woman, especially one living in London: she speaks more like an Essex girl than a SloaneDerivatives Sloaney adjective (Sloanier, Sloaniest)Origin: 1970s: from Sloane Square, London (+ Lone Ranger, the name of a fictitious cowboy hero)