Catch on
Catch on verb - Understand, usually after some initial difficulty.
Lead
Lead verb - To point out the way for (someone) especially from a position in front.
Both terms in one sentence
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Demoted to Extra: Colonel McPhantom failed to catch on as the lead negative character of the 2004 revival, so he was removed from this position after four episodes and started making short apperances at the auction part instead.
Source: Series / Un, dos, tres - It normally only happens to the character most likely to freak out about it, sometimes they'll actually be accompanied by someone who does get it quicker than them or even lead them there who provides a foil for the few moments before they catch on.
Source: Gay Bar Reveal - Led Zeppelin (kind of a pun on "lead" as in "you'll go down like a lead balloon", said by Keith Moon to Jimmy Page meaning It Will Never Catch On); actually it was changed to make the pronunciation unambiguous.
Source: Pun Based Title / Music
Cite this Source
Lead and Catch on. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/catch_on/lead
Catch on & Lead. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/catch_on/lead>.
Lead or Catch on. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/catch_on/lead.
Google Ngram Viewer shows how "catch on" and "lead" have occurred on timeline