nullah From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA stream-bed, ravine, or other watercourse; a drain for rain or floodwater. Related wordsSynonymschannelriverdrainagesewerdrainsewerageoutfallyeahdsdbandydrainskuisewersnullanaladry valleyAssociatedlekmunwatercourselaiwaichaiislamabadwideningsewagewanRhymesmedullasullamullahadrenal medullasquillaabdullahabdullah acull adull agull a References Wiktionary — nullah Wikipedia — nullah