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Definition of "a great deal" []

  • Very much; to a great extent; a lot; lots. (adverb)
  • A large amount; a lot. (noun) : Text is available under the Creative Commons Attribution-ShareAlike License

Use "a great deal" in a sentence
  • "CURTIS PELTIER'S CONFESSION not only explained a great deal about Jack Mercier's actions; it also made things a whole lot more difficult for me."
  • "One area in which a great deal of research has been done in autoimmune-disease patients is that of probiotic supplementation."
  • "Lead, a well-documented neurotoxin, is not a substance that scientists have studied a great deal as a trigger of autoimmune disease, or autogen."