Definition of do a roaring trade or business in English:

do a roaring trade (or business)

informal Do very good business: the cafes on the boulevard were doing a roaring trade the food sellers were doing a roaring trade in spiced sausages
More example sentences
  • All the businesses in Crosshaven are doing a roaring trade.
  • All the usual entertainments - roundabouts and other such things - were there to entice children, and they seemed to be doing a roaring trade.
  • The army of car washers do a roaring trade in cleaning the interiors too, with many people are happy to leave their car unlocked for them while they go shopping.
See parent entry: roaring

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Word of the day abjure
Pronunciation: əbˈdʒʊə
verb
solemnly renounce (a belief, cause, or claim)