Meaning of “porthole” in the English Dictionary

american-english dictionary

"porthole" in British English

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portholenoun [ C ]

uk /ˈpɔːt.həʊl/ us /ˈpɔːrt.hoʊl/

a small, usually round window in the side of a ship or aircraft

(Definition of “porthole” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"porthole" in American English

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portholenoun [ C ]

us /ˈpɔrt·hoʊl, ˈpoʊrt-/

a small, usually round, window in the side of a ship

(Definition of “porthole” from the Cambridge Academic Content Dictionary © Cambridge University Press)