American Heritage Dictionary
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Century Dictionary
GNU Webster's 1913
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WordNet
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Elsewhere on the web
Colin went on to dumbfound the poor copper telling him that he— British Blogs
"I think he's a good president," I told her, which seemed to dumbfound her, and wreck my chances of appearing on her show.— For the Good of the State
As it was put to me by one Miami Heat season seat holder, "That's why I have my tickets and go to the games, because you just never know when he (Wade) will dumbfound you with his play."— Sportsnet.ca - Sports News
Everyone rushed towards her and were dumbfound to see a black reptile ... hissing and moving rapidly!
Bush and his Masters knew that after 9 / 11 the public would be dumbfound and could be manipulated into participating in their own enslavement.— Wake Up From Your Slumber - The Truth Will Set You Free

American Heritage Dictionary (1)
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