View synonyms for fifty-fifty


or 50-50

[ fif-tee-fif-tee ]


  1. equally good and bad, likely and unlikely, favorable and unfavorable, etc.:

    a fifty-fifty chance of winning.


  1. in an evenly or equally divided way:

    The board voted fifty-fifty on the merger.



  1. informal.
    shared or sharing equally; in equal parts
“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 History and Origins

Origin of fifty-fifty1

An Americanism dating back to 1910–15
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Idioms and Phrases

  1. go fifty-fifty (on), to share equally in the cost, responsibility, or profits (of ):

    We went fifty-fifty on the dinner check.

More idioms and phrases containing fifty-fifty

see under under go halves .
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Example Sentences

Gävle Goat must be dreading the imminent holiday and his fifty-fifty chance of destruction.

But what chances should I have given them to kill or maim us: Fifty-fifty?

The proceeds is to be cut up fifty-fifty as between me and him.

If a partner, she has a right to the fifty-fifty split on profits; if an employee, she is entitled to her wages.

It is made up of a bunch of boys who put all their parcels in together and go fifty-fifty on everything.

They said we gave them inspiration; so it was a fifty-fifty exchange.

It seems to be a sort of fifty-fifty bet between the bugs and me.


Definitions and idiom definitions from Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.