The crossword solutions for the term 'QUICK, SHARP SOUND' is 'CLICK'. A CLICK is a short, sharp sound that is usually made when two objects come into contact with each other. It is often used to describe the sound of a switch being turned on or off, or a button being pressed. Clicking is also a common sound made by many animals, such as birds, insects, and rodents. In computing, clicking is the act of pressing a mouse button to select an item on a computer screen.