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Deneb

American

[den-eb] / ˈdɛn ɛb /

noun

Astronomy.

a first-magnitude star in the constellation Cygnus.

Deneb British

/ ˈdɛnɛb /

noun

the brightest star in the constellation Cygnus and one of the brightest but remotest stars in the night sky. Visual magnitude: 1.25; spectral type: A2I

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Deneb Scientific

/ dĕn′ĕb′ /

A white supergiant star. It is the brightest star in the constellation Cygnus, with an apparent magnitude of 1.26. Deneb, along with Vega and Altair, form the Summer Triangle asterism. Scientific name: Alpha Cygnus.
See Note at Rigel

Etymology

Origin of Deneb

First recorded in 1865–70, Deneb is from the Arabic word dhanab a tail

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It all begins with the Summer Triangle, external, a bright three-cornered pattern of stars, called Vega, Deneb, and Altair.

From BBC • Jun. 5, 2025

Deneb is one of the most luminous stars in our entire galaxy.

From Scientific American • Jul. 14, 2023

Deneb said he lives in his vehicle and works as an artist near the spot where Hurtado plays harmonica.

From Los Angeles Times • Oct. 1, 2022

Watch sea otters and battle a giant wave, along with Vega and Deneb.

From Washington Post • Nov. 16, 2020

Deneb gave everyone their assignments on slips of paper.

From "The Marvellers" by Dhonielle Clayton

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023