The Oxford Thesaurus An A-Z Dictionary of Synonyms - facilityn.

1) ease, smoothness, fluency, effortlessness, readiness, easiness, skill, skilfulness, deftness, dexterity, adroitness, ability, aptitude, expertise, expertness, proficiency, mastery, masterfulness, masterliness, efficiency; quickness, alacrity, celerity, swiftness, speed: They praised her new-found facility with the Italian language. 2) Often, facilities. a plant, system, building(s) , structure, complex: The company is building a new facility in France. b convenience(s) , privy, equipment, lavatory, toilet, powder-room, Nautical head, Brit water-closet, WC, loo, US and Canadian rest room, men's room, ladies' room, Colloq the Gents, the Ladies(') , Slang Brit bog, karzy, US and Canadian john: An American asked where he could find the facilities.