clickclick1 /klɪk/ ●●● verb 1 [intransitive, transitive] to make a short hard sound, or to make something produce this sound: The door clicked shut. He clicked his heels (=hit the heels of his shoes together) and jumped into the air.2[intransitive] informal to suddenly understand or realize something: I was having a lot of trouble with algebra until one day it just clicked.3[intransitive] informal if two people click, they immediately like each other4[intransitive, transitive] computers to press a button on a computer mouse to make the computer do something: Click on the icon at the bottom of the screen. [Origin: 1500–1600 From the sound]