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
Examples of viral in a Sentence
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Rhode The Winter Kit Hailey Bieber’s viral skincare brand Rhode is topping teen wishlists this year.
—
Jeaneen Russell, PEOPLE, 10 Dec. 2025
Even a small number of viral particles can make someone sick, according to the CDC.
—Tiffani Jackson, Fort Worth Star-Telegram, 10 Dec. 2025
The struggles have even led some radical Eagles fans to throw eggs at Patullo’s New Jersey home, which was seen in a viral video.
—Scott Thompson, FOXNews.com, 10 Dec. 2025
The products became viral sensations on social media in 2024, with enthusiasm still high to this day.
—Cailey Gleeson, jsonline.com, 10 Dec. 2025
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Jeaneen Russell, PEOPLE, 10 Dec. 2025
Even a small number of viral particles can make someone sick, according to the CDC.
—Tiffani Jackson, Fort Worth Star-Telegram, 10 Dec. 2025
The struggles have even led some radical Eagles fans to throw eggs at Patullo’s New Jersey home, which was seen in a viral video.
—Scott Thompson, FOXNews.com, 10 Dec. 2025
The products became viral sensations on social media in 2024, with enthusiasm still high to this day.
—Cailey Gleeson, jsonline.com, 10 Dec. 2025
See All Example Sentences for viral
Cite this Entry
“Viral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/viral. Accessed 14 Dec. 2025.
Copy CitationKids Definition
viral
adjective
vi·ral
ˈvī-rəl 
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
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