Roger is a current radiotelephony \u2018proword\u2019 which is a word used to represent a longer phrase.<\/p>\n
Roger means, very specifically: \u201cYour message has been received and understood.\u201d<\/p>\n
Wilco means: \u201cYour message has been received and understood and I will comply.\u201d<\/p>\n
Affirm (note, NOT affirmative) simply means, “Yes,” but is clearer over the radio.<\/p>\n
Negative means, “No.”<\/p>\n
Over means, “I\u2019ve finished speaking and expect a reply.”<\/p>\n
Out means, “I\u2019ve finished speaking and do NOT expect a reply.”<\/p>\n
Roger Wilco over and out means, “I am not a pilot.”<\/p>\n
(Tom: And just in case you would like to know the origin, I looked it up:<\/p>\n
“Received” was abbreviated to “R” for Morse code use then for walkie talkie use extended to “Roger” which was to designate “R” per the US WWII phonetic alphabet.<\/p>\n
During WWII, the phonetic alphabet was: Able, Baker, Charlie, Dog, Easy, Fox, George, How, Item, Jig, King, Love, Mike, Nan, Oboe, Peter, Queen, Roger, Sugar, Tare, Uncle, Victor, William, X-ray, Yoke, Zebra.<\/p>\n
It is now Alpha, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliet, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-Ray, Yankee, Zulu.<\/p>\n