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duo-

1.
a combining form meaning “two,” used in the formation of compound words:
duologue.
Origin
combining form of Greek dýo, Latin duo two
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for duo-

duo-

combining form
1.
indicating two: duotone
Word Origin
from Latin
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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4
5
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