click 
(klĭk)
(klĭk)n.
1. A brief, sharp sound: the click of a door latch.
2. A mechanical device, such as a pawl, that snaps into position.
3. Computers
a. An instance of pressing down and releasing a button on a mouse or other input device.
b. An instance of selecting an item in a website or app by clicking or tapping on a mouse, touchscreen, or other input device.
4. Linguistics Any of various implosive stops, such as that of English tsk, produced by raising the back of the tongue to make contact with the palate and simultaneously closing the lips or touching the teeth or alveolar ridge with the tip and sides of the tongue, and found as phonemic consonants especially in the Khoisan and some Bantu languages. Also called suction stop. See Usage Note at !Kung.
v. clicked, click·ing, clicks
v.intr.
1. To produce a click or series of clicks.
2. Computers
a. To press and release a button on a mouse or other input device.
b. To select an item in a webpage or app by clicking or tapping a mouse, touchscreen, or other input device.
3. Slang
a. To have good social or working relations; hit it off: The director and producer clicked at the very start of the play.
b. To become clear; fall into place: The answer finally clicked, and I finished the crossword.
c. To be a great success: The play clicked on Broadway.
v.tr.
1. To cause to click, as by striking together: clicked his heels.
2. Computers
a. To press down and release (a button on an input device): clicked the left button on the mouse.
b. To press down and release a button on (an input device): clicked the mouse.
c. To select (an item in a webpage or app) by clicking or tapping a mouse, touchscreen, or other input device: To open the file, click the icon.
[Imitative.]