The IUPAC name for water is, actually, water. The alternative name is oxidane. The name oxidane is only used in chemistry as the mononuclear parent hydride to name derivatives of water.Thoughtco
Personally I prefer hydroxide myself. Dihydrogen monoxide is just too much of a mouthful. If you have a phobia for chemicals, think to yourself every time you have a glass of water “this is some tasty oxidane.” You’ll eventually quit gagging when you do it.