The Hebrew name for Noah's Ark in the biblical Hebrew text is tevah.
The Hebrew noun teivah, often transliterated tevah or tebah, is used for the vessel in the Book of Genesis. English Bibles normally translate it as “ark,” a word that can also mean a chest or box. The Hebrew term is not the ordinary word for a ship used in many other biblical contexts.
The same Hebrew word appears in the story of Moses as a baby. There, Moses is placed in a teivah coated with material and set among the reeds of the Nile. This creates a literary link between the two stories: both involve a vulnerable person preserved from deadly water in a specially prepared container.
Transliteration varies because Hebrew pronunciation and spelling are represented differently in English. “Tevah” identifies the underlying biblical Hebrew term, while “Noah's Ark” is the conventional English title for the story and its vessel.