noun
(nautical) A strong (often wooden) shutter fitted over a porthole, that can be closed in bad weather to keep water out and discourage the glass windows from breaking.
(nautical) A deck prism, a device to allow light into the cabin of boat through the deck.
(figurative, archaic) An eye.
(figurative, archaic) An eyelid.
Mac + Safari
iPhone + iPad
Google Chrome
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Opera
Microsoft Edge