viral

adjective

vi·​ral ˈvī-rəl How to pronounce viral (audio)
1
: of, relating to, or caused by a virus
a viral infection
2
: quickly and widely spread or popularized especially by means of social media
a viral video
virally
ˈvī-rə-lē How to pronounce viral (audio)
adverb
virality
vī-ˈra-lə-tē How to pronounce viral (audio)
noun

Examples of viral in a Sentence

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.
The Paula’s Choice 2% BHA Exfoliant is one of the most viral face exfoliators out there—and for good reason. — Anna Traver, InStyle, 1 Sep. 2026 Videos promoting the 30-30-30 metabolism protocol have racked up nearly 50 million views, and mainstream health outlets are weighing in on whether the viral morning routine actually delivers. — Samantha Agate, Sacbee.com, 31 Aug. 2026 Now, Monaleo is partnering with the brand Monaleo’s method has led to one of her most viral hits. — Taylor Ardrey, USA Today, 31 Aug. 2026 Video of Gill performing the latter song went viral on social media with millions of views on the different platforms. — Pete Grathoff, Kansas City Star, 31 Aug. 2026 See All Example Sentences for viral

Word History

Etymology

vir(us) + -al entry 1

First Known Use

1937, in the meaning defined at sense 1

Time Traveler
The first known use of viral was in 1937

Phrases Containing viral

Rhymes for viral

See All Rhymes for viral

Browse Nearby Words

virago
viral
Virales
See all Nearby Words

Cite this Entry

“Viral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/viral. Accessed 1 Sep. 2026.

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Kids Definition

viral

adjective
vi·​ral ˈvī-rəl How to pronounce viral (audio)
1
: of, relating to, or caused by a virus
a viral infection
2
: quickly and widely spread or popularized especially by person-to-person electronic communication
a viral video

Medical Definition

viral

adjective
vi·​ral ˈvī-rəl How to pronounce viral (audio)
: of, relating to, or caused by a virus
viral infections
virally
-rə-lē How to pronounce viral (audio)
adverb
Last Updated: - Updated example sentences
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