porthole

noun

port·​hole ˈpȯrt-ˌhōl How to pronounce porthole (audio)
1
: an opening (such as a window) with a cover or closure especially in the side of a ship or aircraft
2
: a port through which to shoot
3

Examples of porthole in a Sentence

Recent Examples on the Web
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Had those magnificent portholes survived? New York Times, 16 Mar. 2026 Some 100 feet below the ocean's surface, Stephen Hawking peeked through the circular porthole of a submarine and saw the brilliant blue tropical water. Scott Neuman, NPR, 9 Mar. 2026 Jack and Jackie’s third child had lived for thirty-nine hours and twelve minutes and died while his father peered in at him through the oxygen chamber’s porthole. Steven Levingston, Vanity Fair, 23 Feb. 2026 Guests on board can find inside rooms, ocean-view rooms with portholes, rooms with a Verandah, amenity-heavy Concierge suites, and several extraordinary Royal Suites. Condé Nast, Condé Nast Traveler, 11 Feb. 2026 See All Example Sentences for porthole

Word History

Etymology

port entry 2

First Known Use

1569, in the meaning defined at sense 1

Time Traveler
The first known use of porthole was in 1569

Browse Nearby Words

Cite this Entry

“Porthole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/porthole. Accessed 28 Mar. 2026.

Kids Definition

porthole

noun
port·​hole ˈpōrt-ˌhōl How to pronounce porthole (audio)
ˈpȯrt-
1
: an opening in the side of a ship or aircraft
2
: an opening to shoot through

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