Definitions of shy:

• noun:   a quick throw

  Example: "He gave the ball a shy to the first baseman"

• verb:   throw quickly
• verb:   start suddenly, as from fight
• adjective:   wary and distrustful; disposed to avoid persons or things

  Example: "Shy of strangers"

• adjective:   easily startled or frightened
• adjective:   lacking self-confidence
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #13408)