caffeine
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.
Scientists are still trying to figure out why the caffeine in coffee may help the heart, Marcus said.
From The Wall Street Journal ● Jul. 20, 2026
“We all metabolize caffeine at different speeds,” Marcus said.
From The Wall Street Journal ● Jul. 20, 2026
People can also respond differently depending on their health, sensitivity to caffeine and other individual factors.
From Science Daily ● Jul. 19, 2026
It may appear alongside caffeine in a beverage, flavoring in a dessert, or an active ingredient in a medication.
From Science Daily ● Jul. 17, 2026
I was caffeine jittery and surly and perfectly capable of wasting his money.
From "Kindred" by Octavia Butler
