extension Pronunciation: /ɪkˈstenʃn/Translate extension | into German | into Italian | into Spanish French translation of extensionn 1 (on cable, table) rallonge (f); (to house) addition (f) 2 (phone) poste (m) supplémentaire extension (number) = (numéro (m) de) poste (m) 3 (of deadline) délai (m) supplémentaireextension in other Oxford dictionaries Definition of extension in the British & World English dictionary Definition of extension in the US English dictionary
