dado (Noun) — Panel forming the lower part of an interior wall when it is finished differently from the rest of the wall.
dado (Noun) — The section of a pedestal between the base and the surbase.
dado (Noun) — A rectangular groove cut into a board so that another piece can fit into it.
dado (Verb) — (carpentry) provide with a dado. ex. "The owners wanted to dado their dining room"
dado (Verb) — (carpentry) cut a dado into or fit into a dado.