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top dog

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noun
a person, group, or nation that has acquired a position of highest authority.
the winner of a competition or rivalry; champion: He was determined to be top dog at the swimming meet.
Animal Behavior. the alpha male or alpha female in a dominance hierarchy.
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Origin of top dog

First recorded in 1885–1900

OTHER WORDS FROM top dog

top-dog, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use top dog in a sentence

British Dictionary definitions for top dog

top dog

noun
informal the leader or chief of a group
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with top dog

top dog

see top banana.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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