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Definitions from the Web

Caffeine

Caffeine is a naturally occurring stimulant compound that is commonly found in coffee beans, tea leaves, and various other plants. It belongs to the methylxanthine class and acts as a central nervous system stimulant. Caffeine is known for its ability to increase mental alertness, improve concentration, and temporarily relieve fatigue. It is also used in various medications and energy drinks.

Part of Speech: Noun

Sense 1:

- a psychoactive stimulant found in coffee and tea

Example sentence: "I need some caffeine to wake me up in the morning."

Sense 2:

- a drug used in medications and energy drinks to boost energy levels

Example sentence: "She drank an energy drink packed with caffeine before her workout."

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