catch on
verb
1 catch on
Understand, usually after some initial difficulty.
synonyms: cotton on, get it, get onto, get wise, latch on, tumble, twig.
2 catch on
Become popular.
Moby thesaurus: absorb, appreciate, apprehend, ascertain, assimilate, be blooded, be hep to, be on to, be successful, be wise to, be with one, become popular, become the rage, catch, catch on to, click, come off, comprehend, conceive, connect ... show more.
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