Definition of Downgrade

Babylon English Dictionary
lower in grade, lower in status
downward slope; decline, regression (of morals, religion, etc.)
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Downgrade Definition from Language, Idioms & Slang Dictionaries & Glossaries
hEnglish - advanced version

downgrade
n : the property possessed by a slope or surface that descends v : rate lower; lower in value or esteem [ant: upgrade]

WordNet 2.0

Noun
1. the property possessed by a slope or surface that descends
(hypernym) grade

Verb
1. rate lower; lower in value or esteem
(antonym) upgrade
(hypernym) rate, rank, range, order, grade, place
Downgrade Definition from Business & Finance Dictionaries & Glossaries
Campbell R. Harvey's Hypertextual Finance Glossary
A classic negative change in ratings for a stock, or other rated security.
Copyright © 2000, Campbell R. Harvey. All Rights Reserved.
Downgrade Definition from Government Dictionaries & Glossaries
DOD Dictionary of Military Terms
To determine that classified information requires, in the interests of national security, a lower degree of protection against unauthorized disclosure than currently provided, coupled with a changing of the classification designation to reflect such a lower degree.
  
Source: U.S. Department of Defense, Joint Doctrine Division. ( About )
Downgrade Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In computing, downgrading refers to reverting software (or hardware) back to an older version; downgrade is the opposite of upgrade. Often, complex programs may need to be downgraded to remove unused or bugged features, and to increase speed and/or ease of use. The same can occur with machinery.

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