noun
porthole
PAWT-hohl
noun
1
A small round window set into the side of a ship.
"She watched the waves through the cabin porthole."
2
Historically, an opening in a ship's hull for firing a cannon through.
"The old warship's portholes once held rows of cannons."
How to Use Porthole
Learner’s notesIn plain EnglishThe small round window in the side of a ship.
Common pairings
look out the porthole
cabin porthole
Word Forms
portholes plural
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Etymology
From "port" (an opening) plus "hole."