VIRUSES Synonyms: 23 Similar and Opposite Words

viruses

noun

Definition of viruses next

plural of virus

as in diseases

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Example Sentences

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.

Recent Examples of viruses All viruses change over time – and the type of virus that causes COVID-19 does so especially quickly. —

Kyle B. Enfield, The Conversation, 28 Mar. 2026 All the vaccines available for children this year protect against three different influenza viruses (two A viruses and one B virus). —

Dr. Kristina Bryant, Boston Herald, 21 Sep. 2025 And a third found that the medication may have a broader antiviral effect against other respiratory viruses, including the influenza virus. —

Katia Hetter, CNN Money, 12 Sep. 2025 With respiratory viruses also prevalent in colder weather, how can people distinguish between seasonal allergies and a virus? —

Katia Hetter, CNN, 2 Oct. 2024

Recent Examples of Synonyms for viruses

diseases

Noun

Combination vaccines are single injections that protect against multiple, preventable diseases and have been used since the 1940s.

— Kar-Hai Chu, The Conversation, 10 Apr. 2026
Through her work at Danielle Ashley Group, Alston in 2008 co-founded First Ladies Health Initiative, a far-reaching effort that seeks to destigmatize screening for various diseases and illnesses in underserved Black and Hispanic communities.

— Bob Goldsborough, Chicago Tribune, 9 Apr. 2026