Quickly; frantically; with great effort or speed.(adverb)
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Use "furiously" in a sentence
"Tuck propels the story fast and furiously from the first chapter, in which we learn at the outset:"
"Hmm … I see Newt backpedaling furiously from the quote … not much else."
"One reason I have been sewing so furiously is that as I get older, I cannot be sure what will be on the market for a woman at the age of 60 to buy and I dont want to wear what "they" have planned for me -- yuck."