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

Another longtime observer of IPOs, the University of Florida professor Jay Ritter, also thinks the 15-day fast entry to the Nasdaq 100 will foster a kind of slow-motion flipping.

From Barron's • Apr. 1, 2026

And though few of them have met before, by the time the plats principaux are cleared, an observer would have thought that they had known each other for ages.

From "The Night Circus" by Erin Morgenstern