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porthole

noun
Quick answer

As a noun, porthole means a circular window set in the hull of a ship.

Meanings of porthole

3 meanings

noun

  1. nauticalA circular window set in the hull of a ship.

  2. An opening (in a wall or ship or armored vehicle) for firing through

    Similar: port, embrasure
Older and rare meanings (1)

  1. archaicA gunport; an opening in the hull of a ship through which cannon are fired.

Meanings from Wiktionary (CC BY-SA 4.0) and Open English WordNet (CC BY 4.0).

Synonyms by meaning

noun: an opening (in a wall or ship or armored vehicle) for fir…
portembrasure

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Nearby words

portentousportentouslyporterporterageporterhouseportfolioportiaportionportlyportmanteauportoportrait