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
Recent Examples on the Web
Lara debuted her viral mini-print machines and greeted visitors throughout the afternoon.
—
Siafa Lewis, CBS News, 3 Dec. 2025
Where college athletes, high school prodigies, and viral trick-shot artists failed, Ronaldo succeeded.
—Kaif Shaikh, Interesting Engineering, 3 Dec. 2025
Another day, another new social media trend that is going viral.
—Melissa Willets, Parents, 3 Dec. 2025
In just a matter of days, the viral TikTok video of Kali has amassed over 500 comments from adoring internet users.
—Alyce Collins, MSNBC Newsweek, 3 Dec. 2025
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Siafa Lewis, CBS News, 3 Dec. 2025
Where college athletes, high school prodigies, and viral trick-shot artists failed, Ronaldo succeeded.
—Kaif Shaikh, Interesting Engineering, 3 Dec. 2025
Another day, another new social media trend that is going viral.
—Melissa Willets, Parents, 3 Dec. 2025
In just a matter of days, the viral TikTok video of Kali has amassed over 500 comments from adoring internet users.
—Alyce Collins, MSNBC Newsweek, 3 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 5 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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