The Austronesian Comparative Dictionary

*Ruqaŋ hole, pit

PWMP Ruqaŋ hole, pit

WMP
Tagalog guʔáŋ ~ guáŋ hollow, empty inside; a gap, hole, crevice or hollow
Tiruray ruwaŋ the inner surface of a canoe; the surface of the earth
Sangir huaŋ subsidence of the ground, hole, pit
Malay ruaŋ hollow space; a ship’s well; the hollow of the back; the depression between the breasts; the grave-trench; the hollow containing the seed in certain fruit; the center room in a house
Mongondow guʔaŋ mine shaft, in particular one from which gold is excavated

PWMP Ruqaŋ-an spacious room or area

WMP
Ilokano roáŋan door, entrance, passage, gate (the opening, not the movable frame of boards or other material)
Bahasa Indonesia ruaŋ-an a spacious room, as a classroom