Backronym
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A backronym (or bacronym or also retronym) is a phrase that is constructed "after the fact" from a previously existing word or abbreviation, the abbreviation being an initialism or an acronym. The term is a false acronym, and sometimes used to refer to the initialism or acronym itself,[1] but usually in those cases, it is a "replacement" backronym, the abbreviation already having an associated phrase. When the backronym phrase becomes more popular than the original, the word becomes an anacronym. (But other than that, backronyms and anacronyms have little to do with each other.) The word backronym is a neologism, coined in 1983.[2] An example of a backronym from the word acronym is as follows.
In this example, because the word acronym itself is not an acronym, the phrase above is a pure backronym, not a replacement backronym. Since the phrase indirectly refers to the word itself, it is also apronymic. If this backronym helps you remember the word acronym or backronym, then it is also a mnemonic.
Backronym versus acronym
An acronym is a pronounceable word created from the initial letters of a phrase:[3] The word radar comes from "Radio Detection and Ranging".[4] Letters from the originating phrase are used to construct a pronounceable word. By contrast, a backronym is constructed by starting with a word (or an initialism) and, beginning with the first letter, using each letter to form the next word of the phrase. The word then becomes an acronym or initialism of the newly formed phrase. In this sense, a backronym is the reversal of an acronym. Since an acronym is defined as a word,[5] and a backronym is constructed from an acronym, it logically follows that the phrase must come from a word. However, this rule is commonly broken, even by dictionaries providing examples such as DVD (an initialism, see image)[6] and SOS (a representation of the emergency signal used in Morse code).[5] TypesBackronyms can be classified along various types. Note that these types are not all exclusive of each other, that is, a backronym can be mnemonic, pure, and recursive. However, a backronym cannot be both pure and replacement. PureA pure backronym occurs when the root word was not previously or commonly known as an acronym or abbreviation. Examples:
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