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top-and-tail
top banana
top billing
top boot
top box
top brass
top-class
top dead-center
top dog
top dollar
top-down
top-drawer
top-dress
top dressing
Top End
top-front
top gear
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World English Dictionary
Dictionnaire Français

top dog
top dog (plural top dogs)


noun 
Definition:
 
most powerful person: the most important or powerful person, often somebody who has beaten all other competitors ( 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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