observer

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.

To resolve this, scientists usually propose that when a quantum system is measured or interacts with an observer, its wavefunction collapses into a single outcome.

From Science Daily • May 3, 2026

One observer compares it to King Kong taking on Godzilla.

From BBC • Apr. 28, 2026

Jim Grant, the long-time markets observer, says there’s a big disconnect between official economic data and consumer perceptions of it.

From MarketWatch • Apr. 14, 2026

Moses was clearly a keen observer of nature.

From The Wall Street Journal • Apr. 11, 2026

As I swung my legs over the branch, my observer ran up into the crown of the tree to join the rest of the troop, but they didn’t flee this time.

From "Flying Through Water" by Mamle Wolo