cotton on

Verb cotton on has 1 sense

• cotton on(v = verb.cognition) catch on, get it, get onto, get wise, latch on, tumble, twig - understand, usually after some initial difficulty; "She didn't know what her classmates were plotting but finally caught on"
is one way to apprehend, compass, comprehend, dig, get the picture, grasp, grok, savvy
Sample sentences:
Somebody ----s
Somebody ----s PP