dado UK /ˈdeɪdəʊ/US /ˈdeɪdoʊ/noun 3verb 2forms 4 noun3 •The lower portion of an interior wall decorated differently from the upper portion. •A rectangular channel in a board cut across the grain.Next, cut stopped dadoes in the shelf and the underside of the top for the vertical dividers. — 2026 •The section of a pedestal above the base. verb2 •To cut a dado. •To furnish with a dado. formsdadoed · dadoing · dadoes · dados