411 REFERENCE · Wiktionary
SEDBUK
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
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en historical en seasonal efficiency of a domestic boiler in the United Kingdom a measurement of boiler efficiency, superseded in 2015 by the Energy related Products (ErP) directive.
Anagrams
en bdeksu Budkes busked