effort force Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a force applied to move something with effort. Example Sentence Levers are simple machines that require effort force to operate. More Example Sentences He used all his effort to lift it. Synonyms push; exertion; strength Antonyms output Hear It! Say It! Write It! effort force Switch to cursive Start Share with your friends: