olwang 1comm. flash flood in a river due to heavy rains in upper portion of the river. Adi kayu madinol an mungkekeh nah te mianud kayu hin umali nan olwang. Don’t just swim there for all you know the flash-flood will just carry you away. (sem. domains: 1.3.1 - Bodies of water.) 2intrans. to have a flash flood. Immolwang ya nianud nadan oongal an kaiw. There was a flash-flood and the big trees were swept away. Mun-olwang handi ekami umali kinali imbangngad mih bale. There was a flash-flood when we were about to come, that is why we went back home. ‑um‑/imm‑, muN‑/nuN‑.