Zmeu is a Romanian word that refers to a supernatural creature similar to a dragon or a serpent. In Romanian folklore, the zmeu is a fierce creature that lives in the mountains and steals princesses. There are several synonyms for the word zmeu, including balaur, dragon, and nălucă. Balaur is another word for dragon in Romanian, and it refers to a multi-headed dragon. Dragon is a word used to describe a large, mythical creature that typically has wings and breathes fire or venom. Nălucă, on the other hand, refers to a ghostly apparition or a malevolent spirit that haunts the living. Regardless of the word used, the zmeu remains a fascinating and terrifying figure in Romanian mythology.