catch on to

1 to come to an awareness of she caught on to the fact that they were planning a surprise party Synonyms of catch on to ascertain, discover (to), find out, get on (to), hear, learn, realize, see, wise (up)Words Related to catch on to hit (on or upon), tumble (to); descry, detect, encounter, espy, see, spot; calculate, dope (out), figure out, find, puzzle (out); discern, mind, note, observe, perceive; divineNear Antonyms of catch on to miss, overlook; disregard, ignore; forget, unlearn; blanket, blot out, cloak, conceal, cover, curtain, enshroud, hide, mask, occult, screen, shroud, veil

2 to have a clear idea of he finally caught on to the concept of phototaxis Synonyms of catch on to appreciate, apprehend, assimilate, behold, catch, comprehend (to), cognize, compass, conceive, cotton (to or on to), decipher, decode, dig, discern, get, grasp, grok, intuit, know, make, make out, perceive, recognize, register, savvy, see, seize, sense, tumble (to), twig, understandWords Related to catch on to absorb, digest, take in; realize; fathom, penetrate, pierceNear Antonyms of catch on to misapprehend, misconceive, misconstrue, misinterpret, misperceive, misread, mistake, misunderstandAntonyms of catch on to miss