afterglow

noun

af·​ter·​glow ˈaf-tər-ˌglō How to pronounce afterglow (audio)
Synonyms of afterglownext
1
: a glow remaining where a light has disappeared
2
: a pleasant effect or feeling that lingers after something is done, experienced, or achieved
basking in the afterglow of success

Examples of afterglow in a Sentence

the afterglow of the sunset
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Hilltop Hoods‘ tour is over, but the hip-hop artist’s special auction has created a warm afterglow. Lars Brandle, Billboard, 27 Mar. 2026 This is the faint thermal afterglow from some 380,000 years after the big bang that was unleashed when the hot, foglike plasma that filled the early universe cooled and cleared as primordial atomic nuclei bonded with free electrons. Paul M. Sutter, Scientific American, 27 Mar. 2026 The Horns were focused but the afterglow of Thursday’s 79-71 first round win over BYU stll hung in the air. Cedric Golden, Austin American Statesman, 21 Mar. 2026 Not long afterward, China’s Einstein Probe satellite identified a potential X-ray afterglow from the same region. Rupendra Brahambhatt, Interesting Engineering, 14 Mar. 2026 See All Example Sentences for afterglow

Word History

Etymology

after- + glow entry 2

First Known Use

1832, in the meaning defined at sense 1

Time Traveler
The first known use of afterglow was in 1832

Browse Nearby Words

Cite this Entry

“Afterglow.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/afterglow. Accessed 1 Apr. 2026.

Kids Definition

afterglow

noun
af·​ter·​glow -ˌglō How to pronounce afterglow (audio)
1
: a glow remaining (as in the sky after sunsets) where a light has disappeared
2
: a pleasant feeling that lingers after something is done, experienced, or achieved
the afterglow of success

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