1. to make a continuous low humming or buzzing sound
2. to move quickly with a whirring sound

1. a continuous low humming or buzzing sound

Examples

• The fan began to whir as it picked up speed.
• I could hear the computer’s hard drive whir softly.
• The hummingbird’s wings whir so fast they’re almost invisible.
• A helicopter whirred overhead.
• The whir of the washing machine filled the basement.
• She heard the familiar whir of the blender from the kitchen.
• The drone whirred past the window.