Definitions of winkle:

• noun:   edible marine gastropod
• noun:   small edible marine snail; steamed in wine or baked
• verb:   remove or displace from a position
• verb:   emit or reflect light in a flickering manner

  Example: "Does a constellation twinkle more brightly than a single star?"

• verb:   gleam or glow intermittently
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #8333)