observers

noun

1. 1

   One who makes observations, monitors or takes notice

   “Most impartial observers agreed that Sampras had not served well.”

2. 2

   One who adheres or follows laws, guidelines, etc.

   “I shall be an observer of the local customs.”

3. 3

   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.”

4. 4

   A country or other entity which has limited participation rights within an organization.

   “The Vatican and Palestine have observer status at the UN.”

5. 5

   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.”

6. 6

   A sentry etc. manning an observation post

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