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[yoo-nuh-fahy] /ˈyu nəˌfaɪ/
verb (used with or without object), unified, unifying.
to make or become a single unit; unite:
to unify conflicting theories; to unify a country.
Origin of unify
1495-1505; < Late Latin ūnificāre, equivalent to Latin ūni- uni- + -ficāre -fy
Related forms
unifier, noun
nonunified, adjective
quasi-unified, adjective
reunify, verb (used with object), reunified, reunifying.
ununified, adjective
combine, merge, fuse, coalesce. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for unify
Contemporary Examples
Historical Examples
  • Sociology seeks out the laws and principles that unify all the rest.

    Society Henry Kalloch Rowe
  • And he must unify the approach to both intellect and emotions.

    Expository Writing Mervin James Curl
  • So I fell back upon the empire in my first attempts to unify my life.

    The Passionate Friends Herbert George Wells
  • And the long wooden veranda that he had invoked did not unify the trinity.

    And Even Now Max Beerbohm
  • The resources were still there, but there was none to organise and unify them.

    The Story of Evolution Joseph McCabe
British Dictionary definitions for unify


verb -fies, -fying, -fied
to make or become one; unite
Derived Forms
unifiable, adjective
unifier, noun
Word Origin
C16: from Medieval Latin ūnificāre, from Latin ūnus one + facere to make
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 unify

c.1500, "to make into one," from Middle French unifier (14c.), from Late Latin unificare "make one," from Latin uni- "one" (see uni-) + root of facere "to make" (see factitious). Related: Unified; unifying. Unified (field) theory in physics is recorded from 1935.

Online Etymology Dictionary, © 2010 Douglas Harper
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