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.

The highest caffeine level did not produce the same benefit.

From Science Daily • Apr. 18, 2026

To investigate this idea, the scientists designed a controlled experiment using different caffeine levels.

From Science Daily • Apr. 18, 2026

In contrast, ants given low or moderate amounts of caffeine quickly became more efficient.

From Science Daily • Apr. 18, 2026

The people who gather in this small room on the eighth floor of the New York Stock Exchange look like a group of middle-aged caffeine addicts.

From The Wall Street Journal • Apr. 15, 2026

Lacey says, “Is it that weird feeling you get from so much caffeine that, like, your heart isn’t beating so much as your whole body is beating?”

From "Paper Towns" by John Green