phase Pronunciation: /feɪz/Translate phase | into French | into Italian | into Spanish German translation of phasen. PhasePhrasal verbs phase ˈinv.t. stufenweise einführen phase ˈoutv.t. allmählich abschaffen [Verfahrensweise, Methode]; (stop producing) [langsam] auslaufen lassenphase in other Oxford dictionaries Definition of phase in the British & World English dictionary Definition of phase in the US English dictionary