megas Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adjective. a greek word meaning 'great' or 'large'. Example Sentence The root megas in megadose changes the meaning to large dose. More Example Sentences They built a megas monument in the city. Synonyms huge; vast; enormous Antonyms small; tiny; little Hear It! Say It! Write It! megas Switch to cursive Start Share with your friends: