a person or thing that does something, especially a person who gets things done with vigor and efficiency.
a person characterized by action, as distinguished from one given to contemplation.
Australian. an amusing or eccentric person; character.

Origin of doer

1300–50; Middle English. See do1, -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for doer

motivator, achiever, dynamo

Examples from the Web for doer

Contemporary Examples of doer

  • Galon comes across as a doer for liberal causes, even if she does not always make headlines.

    The Daily Beast logo
    Meretz Appeals To Smart Secular Women

    Don Futterman

    January 17, 2013

  • In short, he was indispensable for the fulfillment of the Obama Project, a Doer in a team of Dreamers.

    The Daily Beast logo
    America's Prime Minister

    Tunku Varadarajan

    September 28, 2010

  • And he named himself: He's a doer—a credible doer, living on practical achievement, not fumes.

    The Daily Beast logo
    The Mayors Who Can Revive America

    Tina Brown

    September 20, 2010

  • As one Russian newspaper enthused, Medvedev wants “to prove that he is a doer and not just a talker.”

    The Daily Beast logo
    Is Democracy Dead in Russia?

    Stephen Sestanovich

    April 3, 2010

Historical Examples of doer

  • You've made me your butt, your fool, your doer of trivial offices.


    William J. Locke

  • It is a watcher more than a doer, and it is a doer, only that it may the better watch.


    Ralph Waldo Emerson

  • Once he took Loki with him, Loki, the doer of good and the doer of evil.

  • Then Loki, the doer of good and the doer of evil, flew to where Iduna was sitting and spoke to her.

  • All went except Loki, the doer of good and the doer of evil.

British Dictionary definitions for doer



a person or thing that does something or acts in a specified mannera doer of good
an active or energetic person
a thriving animal, esp a horse
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

Word Origin and History for doer

c.1300, agent noun from do.

Online Etymology Dictionary, © 2010 Douglas Harper