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

1. Move in a wavy pattern or with a rising and falling motion
   - roll, undulate, wave 
2. Move noisily
   "flags flapped in the strong wind" 
3. Move with a thrashing motion
   "The bird flapped its wings"
   - beat 
4. Move with a flapping motion
   "The bird's wings were flapping"
   - beat 
5. Make a fuss; be agitated
   - dither, pother 
6. Pronounce with a flap, of alveolar sounds

Derived forms: flappings

Type of: articulate, beat, displace, enounce, enunciate, fret, fuss, move, niggle, pound, pronounce, say, sound out, thump, undulation, wave

Encyclopedia: Flap

• Feast of Weeks
• feast one's eyes
• feasting
• feat
• feather
• feather ball
• feather boa
• feather duster
• feather geranium
• feather one's nest
• feather palm
• feather reed grass
• feather star
• featherbed
• featherbedding
• featherbrained
• feathered
• featheredge
• featheredged
• featherfoil
• featheriness
• feathering
• featherless
• featherlike
• feathertop