observer

[ uhb-zur-ver ]

noun

1. someone or something that observes.
2. a delegate to an assembly or gathering, who is sent to observe and report but not to take part officially in its activities.
3. U.S. Air Force.
   1. a member of an aircrew, other than the pilot, holding an aeronautical rating.
   2. a person who maintains observation in an aircraft during flight.
4. Also called air observer, U.S. Army. a person who serves in an aircraft as a reconnoiterer and directs artillery fire.

Other Words From

• ob·server·ship noun
• inter·ob·server noun

Word History and Origins

Origin of observer¹

First recorded in 1545–55; observe + -er ¹

Example Sentences

The studio had not publicly disclosed the streaming-first plan until recently, leading many Hollywood observers to question the decision.

From Los Angeles Times

Now, agency scientists and outside observers fear a repeat, or worse.

From Science Magazine

But observers of the university knew there were a number of other possible factors.

From New York Times

Several observers, however, have raised concerns over the actual impact of these centres, should they ever start operating at full capacity.

From BBC

With a slap at the weigh-in and then a stale performance in the ring, many observers have questioned the legitimacy of the contest.

From BBC

Related Words

• bystander
• onlooker
• viewer
• watcher
• witness