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[mas-tuh-ree, mah-stuh-] /ˈmæs tə ri, ˈmɑ stə-/
noun, plural masteries for 1, 4.
command or grasp, as of a subject:
a mastery of Italian.
superiority or victory:
mastery over one's enemies.
the act of mastering.
expert skill or knowledge.
the state of being master; power of command or control.
Origin of mastery
1175-1225; master + -y3; replacing Middle English maistrie < Old French
Related forms
nonmastery, noun, plural nonmasteries.
premastery, noun
remastery, noun, plural remasteries. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for mastery
Contemporary Examples
Historical Examples
  • Henceforth, I presume your great country will dispute with us for the mastery of the air.

    Peter Ruff and the Double Four E. Phillips Oppenheim
  • I knew that no help from without would accomplish this mastery.

    The Blue Wall Richard Washburn Child
  • The spirit-key to an understanding of God's Word is surrender of will and life to His mastery.

  • He could only hope to get the mastery of him if he caught him asleep and off his guard.

  • By the use of his hand, he gains dominion and mastery over all that lives upon the earth, in the air, or in the depths of the sea.

    The Human Race Louis Figuier
British Dictionary definitions for mastery


noun (pl) -teries
full command or understanding of a subject
outstanding skill; expertise
the power of command; control
victory or superiority
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 mastery

early 13c., mesterie, "condition of being a master," also "superiority, victory;" from Old French maistrie, from maistre "master" (see master (n.)). Meaning "intellectual command" (of a topic, etc.) is from 1660s.

Online Etymology Dictionary, © 2010 Douglas Harper
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