North Star Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the brightest star in Ursa Minor; at the end of the handle of the little dipper; the northern axis of the earth points toward it Example Sentence The North Star is the brightest star in Ursa Minor. Synonyms Polaris; pole star; polar star Antonyms moon Hear It! Say It! Write It! North Star Switch to cursive Start Share with your friends: