delta is a crossword puzzle answer that we have spotted 16 times. River mouth Greek letter d Mouth of a river Triangular object Fragmented estuary Fourth Greek letter "Keep Climbing" airline Split river mouth system Communication code for D a current issue on the coast Letter (where river divides) Extended area at river mouth dealt illegally at river mouth greek character led back to thanks Area of distributaries in a river basin Mouth starts to digest each little thing ably