competitor Syllabification: (com·pet·i·tor)Pronunciation: /kəmˈpetətər/Translate competitor | into French | into German | into Italian | into Spanish Definition of competitor noun an organization or country that is engaged in commercial or economic competition with others:our main industrial competitors a person who takes part in an athletic contest. Remember that competitor ends with -or.competitor in other Oxford dictionaries Definition of competitor in the British & World English dictionary