U.S. Army. observer(def 4).
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Irregular plural nouns are nouns that become plural in a way other than adding -s or -es to the end. It can be tough to remember which nouns are irregular, but here are a few guidelines for how to handle the ones that are. Regular Nouns First off, a noun is a person, place, or thing. Nouns are singular when they represent one item and …
Why are planes named after numbers, like the 747? Is there a 947 or a 658?
After World War II, one of the largest aircraft manufacturers, Boeing, turned its attention from designing military craft to building commercial planes, along with missiles and spaceships. (Unrelated fact: when Boeing was forced to spin off its passenger flight division, the newly-formed company became United Airlines. Back to the late 1940s: Model numbers were assigned to each division of aircraft (from the Boeing website:) “300s …
someone or something that observes.
a delegate to an assembly or gathering, who is sent to observe and report but not to take part officially in its activities.
U.S. Air Force.
- a member of an aircrew, other than the pilot, holding an aeronautical rating.
- a person who maintains observation in an aircraft during flight.
Also called air observer, aircraft observer. U.S. Army. a person who serves in an aircraft as a reconnoiterer and directs artillery fire.
Origin of observer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a person or thing that observes
a person who attends a conference solely to note the proceedings
a person trained to identify aircraft, esp, formerly, a member of an aircrew
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1550s, "one who keeps a rule, custom, etc.," agent noun from observe. Meaning "one who watches and takes notice" is from 1580s; this is the sense of the word in many newspaper names.
Online Etymology Dictionary, © 2010 Douglas Harper