vapours Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. tiny drops of liquid in the air. they can be seen as mist or fog. Example Sentence Liquefaction is usually achieved by compression of vapours. More Example Sentences I saw vapours coming from the lake. Synonyms mist; fog; steam Antonyms pizza Hear It! Say It! Write It! vapours Switch to cursive Start Share with your friends: