OR Antonyms There is 1 antonym of the word or. (opposite meanings)Did you mean?Definition of ORSynonyms of ORBest Opposite Words For ORTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1nor