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[prob-uh-blee] /ˈprɒb ə bli/
in all likelihood; very likely:
He will probably attend.
Origin of probably
First recorded in 1525-35; probable + -ly Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for probably
Contemporary Examples
Historical Examples
  • "He was probably afraid to tell you," said Halbert, with a slight sneer.

    Brave and Bold Horatio Alger
  • You will probably see me out again in a few days, if you take the trouble to look.

    Brave and Bold Horatio Alger
  • "Because you'd probably have to go to the poorhouse," said Halbert, insolently.

    Brave and Bold Horatio Alger
  • The poor devil had consumption, too, and probably he'll never see them again.

    The Spenders Harry Leon Wilson
  • probably there was no boy present whose suit was of such fine material as his.

    Brave and Bold Horatio Alger
British Dictionary definitions for probably


(sentence modifier; not used with a negative or in a question) in all likelihood or probability: I'll probably see you tomorrow
sentence substitute
I believe such a thing or situation may be the case
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for probably

mid-15c., "plausibly," from probable + -ly (2). As a general purpose qualifier, 1610s.

Online Etymology Dictionary, © 2010 Douglas Harper
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