abbreviation Syllabification: (ab·bre·vi·a·tion)Pronunciation: /əˌbrēvēˈāSHən/ (abbreviation: abbreviation)Translate abbreviation | into French | into German | into Italian | into Spanish Definition of abbreviation noun a shortened form of a word or phrase. the process or result of abbreviating. abbreviation in other Oxford dictionaries Definition of abbreviation in the British & World English dictionary