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English definition of “underdog”

underdog

noun     /ˈʌn.də.dɒɡ/ US  /-dɚ.dɑːɡ/
the underdog [S] a person or group of people with less power , money , etc. than the rest of society : As a politician , her sympathy was always for the underdog in society .FailuresAccidents and disastersHigher and lower points of achievement [C usually singular] in a competition , the person or team considered to be the weakest and the least likely to win Competitors and participants in sports and games
(Definition of underdog noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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