In Genesis, what was the Ark’s only stated opening for light?

In Genesis, the Ark’s stated opening for light was a window.

Genesis 6:16 instructs Noah to make a window for the Ark and to finish the vessel to a specified height. The same verse also mentions a door in the side and the three decks, so the passage distinguishes the window from the entrance.

Some translations describe the opening with terms such as “opening” or “light,” because the underlying Hebrew term and its interpretation have been discussed by translators. “Window” is the traditional English answer and the wording found in many major translations.

Genesis does not describe a complete ventilation system, multiple skylights, or a detailed arrangement of openings. Claims about the Ark’s exact lighting or air circulation therefore involve reconstruction beyond the brief construction instructions in the text.