Observer

//əbˈzɝvɚ// noun

Definitions

Noun
  1. 1
    One who makes observations, monitors or takes notice.

    "Most impartial observers agreed that Sampras had not served well."

  2. 2
    a person who becomes aware (of things or events) through the senses wordnet
  3. 3
    One who adheres or follows laws, guidelines, etc.

    "I shall be an observer of the local customs."

  4. 4
    an expert who observes and comments on something wordnet
  5. 5
    A person sent as a representative, to a meeting or other function to monitor but not to participate.

    "The UN sent many observers to the country's first elections."

Show 3 more definitions
  1. 6
    A country or other entity which has limited participation rights within an organization.

    "The Vatican and Palestine have observer status at the UN."

  2. 7
    A crew member on an aircraft who makes observations of enemy positions or aircraft.

    "The only crew-member to survive the crash was the Canadian observer."

  3. 8
    A sentry etc. manning an observation post.

    "We waited till dusk when the observers' vision was poorest."

Etymology

From observe + -er.

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