[kom-uhn-dant, -dahnt, kom-uhn-dant, -dahnt]
the commanding officer of a place, group, etc.: the commandant of a naval base.
the title of the senior officer and head of the U.S. Marine Corps.
U.S. Army. a title generally given to the heads of military schools.

1680–90; < French, noun use of present participle of commander to command; see -ant Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
commandant (ˈkɒmənˌdænt, -ˌdɑːnt)
an officer commanding a place, group, or establishment

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1680s, from Fr. commandant "the one commanding" (cf. Sp., It. comandante), originally "commanding," prp. of commander (O.Fr. comander "to order, enjoin;" see command).
Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Britannica


commander of a single place or body of men, such as a military school or training unit, or of a larger organization such as a naval district in the United States. The rank of a commandant depends upon the size and importance of his command: in the British Army a colonel commandant is the senior officer of a regiment; in the French Army a commandant is the commanding officer of a battalion, a rank equivalent to major; and the commandant of the United States Marine Corps is a four-star general. Headquarters commandant denotes a staff officer in charge of the internal administration of a military headquarters, with emphasis on maintenance and security of buildings and grounds

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The commandant's residence stands inside to the left of the entrance.
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