blink — When you blink or when you blink your eyes, you shut your eyes and very quickly open them again.
bat — A bat is a specially shaped piece of wood that is used for hitting the ball in baseball, softball, cricket, rounders, or table tennis.
flash — a precedence code for handling messages about initial enemy contact or operational combat messages of extreme urgency within the U.S. military.
flicker — to burn unsteadily; shine with a wavering light: The candle flickered in the wind and went out.
flutter — to wave, flap, or toss about: Banners fluttered in the breeze.
