know-how Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. knowledge of how to do something well; technical skill Example Sentence Cyrus has a lot of know-how when it comes to fixing cars. Spelled with a hyphen Synonyms technical skill; knowledge; expertise Antonyms ignorance Hear It! Say It! Write It! know-how Switch to cursive Start Share with your friends: