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Definitions

caffeine

[ka-feen, kaf-een, kaf-ee-in] / kæˈfin, ˈkæf in, ˈkæf i ɪn /


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 launch is the latest example of musicians turning their love of caffeine into a business venture.

From Salon • Jun. 15, 2026

Think about when you want to sleep and then have the last caffeine hit eight hours before to help you power through.

From BBC • Jun. 13, 2026

Nur House Cafe — If you’re in need of a caffeine break and something sweet, make time for Nur House Cafe.

From Salon • Jun. 11, 2026

The researchers plan to continue investigating how caffeine influences memory consolidation and memory retrieval.

From Science Daily • May 30, 2026

Judging from his dilated eyes and his maniacal grin, he didn’t need any more caffeine.

From "The House of Hades" by Rick Riordan




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