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buddy system
buddy up
Buderim
budesonide
budge (1)
budge (2)
budgerigar
Budget
budget
budget account
budget deficit
budget mortgage
budget variation
budgie
budworm
Buena Park
Buena Vista
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buff up
buff up


intransitive verb 
Definition:
 
improve your fitness: to become or make yourself physically fit and strong through exercise and diet ( informal )

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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