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contra1

[kon-truh] /ˈkɒn trə/
preposition
1.
against; in opposition or contrast to:
Consider the problems of the teenager contra those of the adult.
adverb
2.
contrariwise; on or to the contrary.
Origin of contra1
1350-1400
1350-1400; Middle English < Latin contrā

contra2

[kon-truh; Spanish kawn-trah] /ˈkɒn trə; Spanish ˈkɔn trɑ/
noun, plural contras
[kon-truh z; Spanish kawn-trahs] /ˈkɒn trəz; Spanish ˈkɔn trɑs/ (Show IPA)
1.
(often initial capital letter) a member of a counterrevolutionary guerrilla group in Nicaragua.
Origin
< American Spanish, shortening of contrarrevolucionario counterrevolutionary

contra-1

1.
a prefix meaning “against,” “opposite,” “opposing”:
contradistinction, contraindicate.
Origin
< Late Latin, Latin, prefixal use of adverb and preposition contrā

contra-2

1.
a prefix meaning “pitched lower than” the voice or instrument specified by the following element:
contralto, contrabassoon.
Origin
< Italian < Latin; see contra-1, counterpoint
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for contra

contra-

prefix
1.
against; contrary; opposing; contrasting: contraceptive, contradistinction
2.
(in music) pitched below: contrabass
Word Origin
from Latin, from contrā against
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 contra

mid-14c., from Latin contra (prep. and adv.) "against," originally "in comparison with," ablative singular feminine of *com-teros, from Old Latin com "with, together" (see com-) + -tr, zero degree of the comparative suffix -ter-.

Contra

n.

1981, "anti-Sandinista Nicaraguan," short for Spanish contrarrevolucionario "counter-revolutionary."

contra-

word-forming element meaning "against, in opposition," from Latin adverb and preposition contra (see contra). The Latin word was used as a prefix in Late Latin. In French, it became contre- and passed into English as counter-. The Old English equivalent was wiðer (surviving in withers and widdershins), from wið "with, against."

Online Etymology Dictionary, © 2010 Douglas Harper
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contra in Medicine

contra- pref.
Against; opposite; contrasting: contraindication.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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