Thesaurus.com
Dictionary.com
Showing results for caffeine. Search instead for tuffsteine.
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.

However, the benefits appear to level off after a certain point, meaning more caffeine is not necessarily better for the brain.

From Science Daily • May 13, 2026

Researchers also caution that measuring caffeine intake by "cups" is not exact.

From Science Daily • May 13, 2026

Freshly brewed coffee made from whole beans may contain very different caffeine levels compared to instant coffee, and preparation methods can also affect cholesterol levels.

From Science Daily • May 13, 2026

In that group, consuming about 250mg-300mg of caffeine per day, equal to roughly two to three cups of coffee, was linked to a 35% lower dementia risk.

From Science Daily • May 13, 2026

The doctors had told him to lay off the caffeine, but he figured they’d make an exception for today.

From "Eleven" by Tom Rogers




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "caffeine" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com