air conditioner [air conditioners](a machine that is used to control temperature and humidity in an enclosed space) noun [UK: eə(r) kən.ˈdɪ.ʃə.nə(r)] [US: ˈer kən.ˈdɪ.ʃə.nər]
air conditioning(an air conditioner or system of air conditioners, see also: air conditioner) noun [UK: eə(r) kən.ˈdɪʃ.n̩.ɪŋ] [US: ˈer kən.ˈdɪʃ.n̩.ɪŋ]