Meaning of “caffeine” in the English Dictionary

british dictionary

"caffeine" in British English

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caffeinenoun [ U ]

uk /ˈkæf.iːn/ us /ˈkæf.iːn/

Examples

  • Caffeine wakes us up and gives us energy.
  • Many people like tea and coffee because of the caffeine in these drinks.

(Definition of “caffeine” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"caffeine" in American English

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caffeinenoun [ U ]

us /kæˈfin, ˈkæf·in/

a chemical found in coffee and tea that is a stimulant (= something that tends to make you more active)

(Definition of “caffeine” from the Cambridge Academic Content Dictionary © Cambridge University Press)