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.

Here, the very irregularity of the interior environment, including the concrete surfaces — richer and more textured than I expected — heightened my alertness.

From Los Angeles Times • Apr. 22, 2026

Some did their exercises at times to match their body clock chronotype - the natural predisposition to morning or evening alertness - while others did the opposite.

From BBC • Apr. 14, 2026

Because growth hormone works through brain systems that control alertness, it may also influence how clearly you think and how focused you feel.

From Science Daily • Mar. 30, 2026

Research suggests certain colors can enhance a sense of well-being or even increase alertness.

From The Wall Street Journal • Dec. 26, 2025

He would need the touch of a surgeon, the alertness of an owl, the cunning of three foxes, and the foresight of a grand master in chess.

From "Maniac Magee" by Jerry Spinelli