Spanish › DictionarycosoHear itnoundatedinformalmasculineobsoleteHonduran, Dominican, Colombian, Venezuelan, Ecuadorian, Rioplatense, Costa Rican, and Paraguayan form of cosa“thing”thingybull ringroad, waywoodwormFormsnounsingularcosopluralcososOther ways to say itcaminoway, route; roadcarcomawoodworm; thorn in someone's sideplaza de torosbullringpolillamoth; grub, woodworm, bookwormquerawoodwormRead Spanish with every word explained