specknounmasculine/ˈsiʃku/mediumcis·coPortuguesEnglishEspanolFrancaisDefinitionA tiny particle of dirt, dust, or rubbish.A speck of dust flew into my eye.The house was so clean there wasn't a speck of dirt.synspeckparticlemoteEtymologyDo latim 'ciscum' (resíduo, sujidade).Related wordsciscarcisqueirociscoar