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1. The motion made by flapping up and down
   - flap, flapping, flutter

1. Move along rapidly and lightly; skim or dart
   - flit, fleet, dart
    
2. Move back and forth very rapidly
   - flicker, waver, flitter, quiver
    
3. Flap the wings rapidly or fly with flapping movements
   "The seagulls fluttered overhead"
    
4. Beat rapidly
   - palpitate
    
5. Wink briefly
   - bat

Derived forms: flutterings

Type of: beat, blink, flap, hurry, move back and forth, nictate, nictitate, pound, speed, thump, travel rapidly, undulation, wave, wink, zip

Encyclopedia: Flutter