Why are Some Acronyms so Difficult for the Public to Understand?

Greetings. UFO. No other acronym has escaped firm understanding by the general public as the one meaning unidentified flying object. Even members of the UFO research community are guilty of using the acronym in an inappropriate manner, which can be as damaging as the usage common to the UFO subculture and the public at large. It goes without saying that the acronym UFO means unidentified flying object, and nothing else. Unfortunately, as the decades have passed, the acronym has come to be directly associated with anything and everything alien or extraterrestrial. Anyone on the planet is capable of witnessing a UFO, if they are inept enough at observing their immediate surroundings. UFOs can be any of the following; birds, stars, comets, clouds, drones, meteors, balloons, satellites, civilian aircraft, military aircraft, weather phenomena, bugs on a windshield, naturally occurring extraterrestrial phenomena, and of importance to the majority of the human race, alien spacecraft. The vast...