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.

Why cancer has been increasing in people's late teens, 20s, 30s and 40s has been puzzling scientists for years.

From BBC • Apr. 28, 2026

Asteroid Phaethon, which is five kilometers in diameter, has been puzzling researchers for a long time.

From Science Daily • Nov. 28, 2023

The story of how black holes, especially young ones, grow so fast and become so massive, has been puzzling astronomers for a long time.

From Space Scoop • Aug. 3, 2023

The recent case of Cleveland Browns quarterback DeShaun Watson has been puzzling to many.

From Washington Post • Oct. 16, 2022

And that reminds me of a question that has been puzzling me ever since I heard of the Squire’s death.

From Roger Ingleton, Minor by Reed, Talbot Baines