oscillates Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to move back and forth in a regular rhythm. Example Sentence He oscillates between accepting the new position and retirement. More Example Sentences The pendulum oscillates with a steady motion. Synonyms sway; fluctuate; wobble Antonyms remain; stabilize; stay Hear It! Say It! Write It! oscillates Switch to cursive Start Share with your friends: