Comparative form of well-known: more well-known(adjective)
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Use "better-known" in a sentence
"One of the better-known Americans to have lost his groove during the Revolution was Yankee Doodle."
"Instead, Pawlenty calmly repeated an answer he's honed over the months as better-known GOP candidates have continued to flirt with running in 2012: "It's the flavor-of-the-month phenomenon where somebody new emerges and there's the initial buzz around that candidate.""
"These and some better-known impacts -- proliferation of invasive plants and fish, greater frequency and intensity of wildfires, and declines in wildlife populations that depend on sea ice and glaciers -- are outlined in a recent National Park Service report."