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

Many of us have only marveled at it through the porthole of a Dreamliner flying back from Europe. —Tim Neville, Outside, 23 Jan. 2026

The Shenzhou capsule porthole consists of three layers of glass. —Leonard David, Space.com, 21 Jan. 2026

After the child lost her balance on June 29 and fell backward through a porthole on Deck 4, her father jumped in after her, according to a Broward County Sheriff’s Office report. —Nathan Diller, USA Today, 5 Jan. 2026

Two rows of Mammoth's signature stretched oval porthole windows on the roof edges let light in during the day and provide a glimpse at the shimmering sky at night. —New Atlas, 24 Nov. 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