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Definitions

vaccine

[vak-seen, vak-seen, -sin] / vækˈsin, ˈvæk sin, -sɪn /


NOUN
injection
Synonyms






Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The surge is compounded by "declining vaccine confidence in some previously high-coverage communities".

From Barron's • Apr. 24, 2026

Of those children reached, an estimated 12.3 million had never received a vaccine dose before, while 15 million had never previously received a measles vaccine.

From Barron's • Apr. 24, 2026

If successful, the vaccine trains immune cells to recognize and destroy any remaining cancer cells carrying those mutations before they can form new tumors.

From The Wall Street Journal • Apr. 21, 2026

The study will examine whether the vaccine is safe and can generate a strong immune response.

From BBC • Apr. 21, 2026

“My vaccine works,” he says, taking off his spectacles and wiping them with a handkerchief.

From "Dread Nation" by Justina Ireland




Vocabulary lists containing vaccine