tugdus verb English. Lowers a wall, curtain or shutter to open or close an opening. Example sentence: Subanen. Sa' gendaw, tugdusen sug dendingen; sa' gebii, betunen. English. When it's daytime the wall is lowered (to allow ventilation and light); at night it is drawn up. Antonym. batun 1 Synonym. ludus; tentun; tubak