Abbreviation

Our sister encyclopedia, Encarta, informs us that "There are four main kinds of abbreviations: shortenings, contractions, initialisms, and acronyms." [1]

## Using the initial letters of each word[edit]

So-called Initialisms are a form of abbreviation in which a phrase is abbreviated to the first letter of each word in the phrase; familiar examples include

* CPA, for Certified Public Accountant
* CBS, for Columbia Broadcasting System
* KJV, for King James Version.

Initialisms are distinguished from acronyms in that initialisms are pronounced as individual letters, while acronyms are pronounced as if the letters spelled out a word (which they may in some cases do). As Encarta says, "Acronyms are initialisms that have become words in their own right." [1] The use of the word "acronym" to include initialisms is increasingly accepted.

Both initialisms and acronyms are defined by custom; sometimes they do not strictly follow the rule of using every initial, or only the first initial. Unimportant words may be omitted. In the case of acronyms a certain amount of creativity may be employed.

* FBI, for Federal Bureau of Investigation'
* AFL-CIO, for American Federation of Labor and Congress of Industrial Organizations

Examples of acronyms include:

* USA PATRIOT Act, for Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act
* TULIP, for Total Depravity, Unconditional Election, Limited Atonement, Irresistible Grace, and Perseverance of the Saints (the core tenets of Calvinism).
* Roy G. Biv, for Red, Orange, Yellow, Green, Blue, Indigo, and Violet (the conventional description of the colors in the spectrum).

## Notes[edit]

1. ↑ 1.0 1.1 [1]

## External links[edit]

* Grammar Girl explains initialisms and acronyms