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fu
Fu Manchu mustache
fu yung
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fuel efficiency
fu·el ef·fi·cien·cy


noun 
Definition:
 
economy of fuel: the ability to make the best use of the fuel being used

fu·el-ef·fi·cient adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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