dulun verb English. Forms a boundary between things, shares field boundary. Example sentence: Subanen. Si Ansibay muka' si Marapara, migdulun da ig lupa' nilan. English. Ansibay and Marapara's land are adjacent. dulunan noun English. A boundary between things, usu. between sections of land. Example sentence: Subanen. Ndi'a peglapas dig dulunan kiin, adun ndi' ita mesasaw. English. Don't extend your field over the boundary, so that we won't quarrel. Synonym. batal