brown sauce brown·sauce uncommon noun 1. a sauce based on soy sauce SynonymsChinese brown saucebrown sauce 2. bouillon or beef stock thickened with butter and flour roux and variously seasoned with herbs or Worcestershire etc. Synonymsbrown saucesauce Espagnole Related words Broader terms sauce WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
