big head Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. 1 conceit; egotism; 2 ny of various diseases of animals characterized by edema of the head and neck Example Sentence Don't get a big head just because you scored the winning run. Synonyms conceit; egotism; vanity Antonyms humbleness Hear It! Say It! Write It! big head Switch to cursive Start Share with your friends: