get onto(v = verb.cognition) catch on, cotton on, get it, 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 something; Somebody ----s PP

all get out, get, get a line, get a load, get a look, get a noseful, get a whiff, get about, get across, get ahead, get along, get along with, get around, get around to, get at, get away, get away with, get back, get back at, get behind, get by, get cracking, get down, get dressed, get even, get even with, get going, get hitched with, get hold, get hold of, get in, get in touch, get in touch with, get into, get it, get it on, get it over, get laid, get married, get moving, get off, get off the ground, get on, get on with, get one's lumps, get out, get out of, get over, get rid of, get rolling, get started, get stuck, get the best, get the better of, get the goods, get the hang, get the hang of, get the jump, get the picture, get through, get to, get to be, get to grips, get together, get under one's skin, get up, get weaving, get well, get wind, get wise, get with it, get word, get worse, leech onto, onto, onto land