propellor Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a device with blades that spins to move a vehicle forward. Example Sentence The propellor on the airplane helped it fly. More Example Sentences A propellor can be found on many planes. Synonyms rotor; screw; fan Antonyms brake; stop Hear It! Say It! Write It! propellor Switch to cursive Start Share with your friends: