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English definition of “de-”

de-

prefix     /diː-/ /dɪ-/
used to add the meaning 'opposite', 'remove', or 'reduce' to a noun or verb: deforestation the denationalization of the coal industry Once you've written a computer program, you have to debug (= remove the errors from) it.Taking things away from someone or somewhereRemoving and getting rid of things
(Definition of de- prefix from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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