I3 Syllabification: (I)Pronunciation: /ī/Translate I | into French | into German | into Italian | into Spanish Definition of I abbreviation Independent. (preceding a highway number) Interstate. (I.) Island(s) or Isle(s) (chiefly on maps). symbol electric current:V = I/R the chemical element iodine. I in other Oxford dictionaries Definition of I in the British & World English dictionary