oscillate
/ˈɑsɪleɪt/verb
To move repeatedly from side to side or back and forth, often in a steady rhythm.
Example sentences
- “The fan oscillates slowly, sweeping cool air across the room.”
- “Public opinion on the issue has oscillated between support and doubt for years.”
In everyday use, people oscillate between two choices; the fan that turns from side to side is an oscillating fan.