AIR HORN Antonyms There are 2 antonyms of the phrase air horn. (opposite meanings)Did you mean?Definition of AIR HORNSynonyms of AIR HORNBest Opposite Words For AIR HORNTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1silencenounn2whisperverb, nounv, n Alternatives for SILENCE Words (14)hushquietcalmpeaceserenitystillnesstranquilitymutenessquietenquietnesssecrecysecretivenessstillwhistPhrases (3)be quiethush upshut upOpposite words for silence Alternatives for WHISPER Words (5)whisperingrustlerustlingsusurrationvoicelessnessOpposite words for whisper