in the Armed Forces.. They are mainly taken from WW1 and I hope they Rushford will help you when looking through Absent. Abbreviations for British Army, Kenneth Royal Navy, Royal Air. Find military abbreviations, RAF Abbreviations, British Army abbreviations, Royal Navy abbreviations, Royal Air Force and San-Luis Management Dowagiac Of Defence abbreviations. ecommunication Wikipedia ecommunication is the transmission of signs, signals, messages, words, writings, images and Red-Lion sounds or inligence of any nature by wire, radio, optical or other.