gabun noun English. Fine particles of solid matter or water which obscure the sky, cloud, fog, haze. Example sentence: Subanen. Sungu na dumupi', pu' medikpel gupiai gabun. English. It's about to rain, because there are thick clouds. Example sentence: Subanen. Su gediplanu kitu, minayan mesikad gupia, pu' mpekayaw tanan meksigebun ig biananen. English. As for that airplane, it went by very fast, in that its path became cloud (i.e. vapor trail).