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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For the budget-conscious, there are Ocean View suites with big picture windows and 10 suites with portholes. Condé Nast, Condé Nast Traveler, 12 Aug. 2026 To accommodate these experiments, the Concorde 001 prototype underwent significant modifications, notably the creation of four portholes in the ceiling, with one dedicated window for each experiment. Dhananjay Khadilkar, ArsTechnica, 7 Aug. 2026 The Staterooms The majority of Star Legend’s 156 staterooms are 277-square-foot suites with separate sleeping and sitting areas and either small portholes, a large picture window, or a step-out-only French balcony. Erica Silverstein, Travel + Leisure, 4 Aug. 2026 Circular motifs carved into the doors are reminiscent of the portholes of luxury ocean liners that once docked nearby on the Hudson River. Troy J. McMullen, Architectural Digest, 9 July 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 13 Aug. 2026.

Kids Definition

porthole

noun
1
: an opening in the side of a ship or aircraft
2
: an opening to shoot through

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