"Derby" is the American name for this British hat
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other names as the colloquial British billycock and, in America, the derby,... [DOC] [TLE] hats and other things worn on the head - synonyms and related ... [PAR] Comprehensive list of synonyms for hats and other things worn on the head, by 
Macmillan Dictionary and ... Click any word in a definition or example to find the 
entry for that word ... noun.