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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.

During the test, for example, if a user saw a sponsored prompt that said, “What energy drink has the most caffeine?” and clicked on it, Sparky responded.

From The Wall Street Journal

Coffees made with extra ingredients like mushrooms, protein and collagen are known as "functional coffees" - which aim to provide consumers with benefits beyond the typical caffeine boost.

From BBC

“By two o’clock in the afternoon, they put me in a conference room,” says Matthews of her subsequent caffeine crash.

From The Wall Street Journal

Some sports gels contain stimulants like caffeine or preservatives like salts.

From Salon

“I’m sitting in the team meeting and the caffeine is running through me too much, like my hand is shaking,” Dakhil said.

From Los Angeles Times