Definition of click:
a brief, sharp, not particularly loud, relatively high-pitched
sound produced by the impact something small and hard against something hard, such as by the operation of a switch
, a lock
or a latch
, or a finger pressed against the thumb and then released to strike the hand; an ingressive
sound made by coarticulating
or uvular closure
with another closure
"I turned the key, the lock gave a click and the door opened."
to operate (a switch, etc) so that it makes a click; to press and release (a button on a computer mouse)
"he bent his fingers back until the joints clicked."
the sound of a click
"click! The door opened."