proposition Pronunciation: /prɒpəˈzɪʃn/Translate proposition | into French | into Italian | into Spanish German translation of propositionn. 1 (proposal) Vorschlag make or put a proposition to sb. = jmdm. einen Vorschlag machen 2 (statement) [Logic] Aussageproposition in other Oxford dictionaries Definition of proposition in the British & World English dictionary Definition of proposition in the US English dictionary