observer

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noun ob·serv·er \əb-ˈzər-vər\

Definition of observer

  1. :  one that observes: such asa :  a representative sent to observe but not participate officially in an activity (as a meeting or war)b :  an expert analyst and commentator in a particular field political observers

Examples of observer in a sentence

  1. According to one observer, the event was poorly organized.

  2. The star is not visible to an observer without a telescope.

  3. According to one military observer, this change comes after years of planning.

  4. Observers say the economy is improving.

  5. The class has an observer today, so please be on your best behavior.

Circa 1550

First Known Use of observer

circa 1550




OBSERVER Defined for English Language Learners

observer

play
noun ob·serv·er \əb-ˈzər-vər\

Definition of observer for English Language Learners

  • : a person who sees and notices someone or something

  • : a person who pays close attention to something and is considered to be an expert on that thing

  • : a person who is present at something (such as a meeting) in order to watch and listen to what happens



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