hollow in Finnish
hollow in Finnish
ontto
(of something solid) Having an empty space or cavity inside.
notko
(geography) A small valley between mountains.
kuoppa
A sunken area on a surface.
loukko
A sunken area on a surface.
onkalo
A sunken area on a surface.
ontelo
An unfilled space in something solid; a cavity, natural or artificial.
onkalo
(figuratively) A feeling of emptiness.