Deneb

noun

Den·​eb ˈde-ˌneb 

-nəb

: a star of the first magnitude in Cygnus

Examples of Deneb in a Sentence

Recent Examples on the Web

Meanwhile, the Summer Triangle — formed by Vega, Deneb and Altair — hangs almost overhead during the darkest hours, making this one of the easiest seasonal star patterns for beginners to learn. — Jamie Carter, Space.com, 17 July 2026

Powered by liquid oxygen and methane, Deneb has a thrust of 15,000 pounds. — Eric Berger, ArsTechnica, 9 July 2026

Vega in Lyra the Lyre or Harp; Altair in Aquila the Eagle; and Deneb, the brightest star in Cygnus the Swan. — Mike Lynch, Twin Cities, 5 July 2026

Three stars — Deneb, Vega and Altair — will form a triangle, known as the Summer Triangle asterism. — Hali Smith june 4, Idaho Statesman, 4 June 2026

Word History

Etymology

Arabic dhanab al-dajāja, literally, the tail of the hen

First Known Use

circa 1867, in the meaning defined above

Kids Definition

Deneb

noun

Den·​eb ˈden-ˌeb 

-əb

: the brightest star in the group of stars of Cygnus