Thesaurus.com
Dictionary.com
Showing results for caffeine. Search instead for piekfeine.
Definitions

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.

Coca-Cola HBC CCH 3.41%increase; green up pointing triangle reported organic sales growth led by blockbuster caffeine consumption.

From The Wall Street Journal • May 7, 2026

These results suggest that coffee can enhance mood even without caffeine.

From Science Daily • May 3, 2026

Only participants consuming caffeine experienced reduced anxiety along with better attention and alertness.

From Science Daily • May 3, 2026

This finding suggests that compounds other than caffeine, such as polyphenols, may be responsible for certain cognitive benefits.

From Science Daily • May 3, 2026

It was getting to the perfect stage of meltiness, where the sugar and caffeine came together in a glorious adrenaline spiral.

From "Far from the Tree" by Robin Benway