noun
- a small round window in the side of a ship or aircraft
Usage: nautical
Examples
- The passenger looked out through the porthole at the ocean.
- Water splashed against the ship’s porthole during the storm.
- She could see the harbor through the airplane’s porthole.
- The captain closed the porthole to keep out the spray.
- Sunlight streamed through the small porthole into the cabin.
- The cruise ship had portholes along every deck.