1. a person who watches or notices something: "to a casual observer, he was at peace"
▪ a person who follows events closely and comments publicly on them: "some observers expect interest rates to rise"
▪ a person posted in an official capacity to an area to monitor political or military events: "elections scrutinized by international observers"
▪ a person who attends a conference, inquiry, etc., to note the proceedings without participating in them: "he had been invited to attend the meeting as an observer"
▪ a person trained to spot and identify enemy aircraft or to reconnoitre enemy positions from the air:"the Royal Observer Corps"
