noun

• (British) The act of snapping one's fingers.
• (phonetics) An ingressive sound made by coarticulating a velar or uvular closure with another closure.
  "tsk is a click in English."
• (graphical user interface) The act of pressing a button on a computer mouse or similar input device, both as a physical act and a reaction in the software.
• (by extension) A single instance of content on the Internet being accessed.
  "The dirty secret of the internet is that all this distraction and interruption is immensely profitable. Web companies like to boast about[…]and so on. But the real way to build a successful online business is to be better than your rivals at undermining people's control of their own attention. Partly, this is a result of how online advertising has traditionally worked: advertisers pay for clicks, and a click is a click, however it's obtained."

verb

• (transitive) To cause to make a click; to operate (a switch, etc) so that it makes a click.
  "[Jove] clicked all his marble thumbs."
• (intransitive) To emit a click.
  "Surely that picture will be fixed for ever, for I heard the cameras clicking round me like crickets in a field."
• (British) To snap one's fingers.
• (computing) To press and release (a button on a computer mouse).

noun

• (UK, dialect) The latch of a door.

verb

• (obsolete) To snatch.
  "‘I take 'em to prevent abuses,’ Cants he, and then the Crucifix And Chalice from the Altar clicks."