Prevost noun2 •Synonym of Old Prevost: A district, a former municipality of Prévost, Rivière-du-Nord county, Quebec, Canada; across the river from Shawbridge in Prévost •Synonym of Old Prévost: A district, a former municipality of Prévost, Rivière-du-Nord county, Quebec, Canada; across the river from Shawbridge in Prévost