In the Genesis account of Noah’s Ark, the one-cubit opening is called a window in many translations.
Genesis 6:16 tells Noah to make an opening for the ark and to finish it to a cubit, while also placing a door in the side. English translations vary in how they render the underlying Hebrew term and the surrounding architectural description. “Window” is the traditional wording found in many versions.
This opening becomes important in Genesis 8, when Noah opens it before sending out the raven and the dove. The text therefore connects the ark’s construction instructions with the later bird episodes.
Readers sometimes call the feature a hatch, skylight, or roof vent because the exact ancient design is not fully explained. Those terms may describe possible functions, but “window” is the standard answer when following the familiar Genesis translation. The passage does not provide enough detail to reconstruct its precise shape.