Porthole
Porthole noun - A window in a ship or airplane.
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Synonyms for Porthole
Window opening and porthole are semantically related in windowpane topic. In some cases you can use "Window opening" instead a noun "Porthole".
Window opening
Porthole and window opening are semantically related in windowpane topic. You can use "Porthole" instead a noun "Window opening".
Cite this Source
Window opening and Porthole. (2016). Retrieved 2026, July 30, from https://thesaurus.plus/related/porthole/window_opening
Porthole & Window opening. N.p., 2016. Web. 30 Jul. 2026. <https://thesaurus.plus/related/porthole/window_opening>.
Window opening or Porthole. 2016. Accessed July 30, 2026. https://thesaurus.plus/related/porthole/window_opening.
Google Ngram Viewer shows how "porthole" and "window opening" have occurred on timeline