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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.

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

Millions of TVs - and kettles being boiled for a half-time caffeine boost - along with fridges being opened and closed as people get cold drinks and snacks would cause surges, said Neso.

From BBC • Jun. 6, 2026

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

From Science Daily • May 30, 2026

The drink's bright emerald colour has attracted the TikTok generation, and the milder caffeine hit from its green tea powder is suited to health-conscious drinkers who want good sleep.

From BBC • May 28, 2026

He was like an angry machine, shaking as if he’d just eaten those caffeine pills my mother used to take to stay skinny.

From "Please Ignore Vera Dietz" by A.S. King




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