caffeine

[ka-feen, kaf-een, kaf-ee-in] / kæˈfin, ˈkæf in, ˈkæf i ɪn /

NOUN

coffee

Synonyms

STRONGEST

cappuccino espresso

STRONG

brew decaf decoction demitasse ink java mocha mud perk

WEAK

battery acid café café au lait café noir forty weight hot stuff jamocha joe varnish remover

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.

As a vehicle for jitters, Diet Coke also contains significantly more caffeine than both regular Coca-Cola and Coke Zero.

From The Wall Street Journal • May 20, 2026

Anyone with these conditions should discuss caffeine intake with their doctor.

From Science Daily • May 18, 2026

Regular coffee drinkers also tend to clear caffeine from the body more efficiently.

From Science Daily • May 18, 2026

Genetics also play a role, since some people naturally break down caffeine faster than others.

From Science Daily • May 18, 2026

They were laying off sugar or carbs or caffeine or meat or dairy, but maybe a little butter was fine now and then.

From "We Are Okay" by Nina LaCour

caffeine

Example Sentences

Related Words