porthole

noun

port·​hole ˈpȯrt-ˌhōl 

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

: port entry 2 sense 2

Examples of porthole in a Sentence

Recent Examples on the Web

Eliminating window portholes can also reduce steps in the construction process, which the company says should help lower manufacturing costs. —Mack Degeurin, Popular Science, 2 Oct. 2025

Three levels down, visitors can peer all the way up through the saltwater and the flotilla of fish thanks to a huge oculus — a 31-foot-wide angled porthole — at the tank’s bottom. —Miami Herald, 18 Sep. 2025

Even its exterior is cool – designed to evoke the sleek, curved lines of a luxury cruise ship, porthole windows and all. —David Dickstein, Oc Register, 17 Sep. 2025

He's been obsessed with having a porthole, being able to open a porthole. —Mike Miller, Entertainment Weekly, 13 Sep. 2025

Word History

Etymology

port entry 2

First Known Use

1569, in the meaning defined at sense 1

Rhymes for porthole

• bankroll
• bedroll
• borehole
• cajole
• catchpole
• charcoal
• condole
• control
• dipole
• downhole
• enroll
• extol

Kids Definition

porthole

noun

port·​hole ˈpōrt-ˌhōl 

ˈpȯrt-

1

: an opening in the side of a ship or aircraft

2

: an opening to shoot through