Acronym meaning

ăk'rə-nĭm'
The definition of an acronym is a word formed from the first letter or first few letters of each word in a phrase or title.

Radar (radio detecting and ranging) and NATO (North Atlantic Treaty Organization) are each an example of an acronym.

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A word formed from the first (or first few) letters of a series of words, as radar, from radio detecting and ranging.
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A word formed by combining the initial letters of a multipart name, such as NATO from N orth A tlantic T reaty O rganization or by combining the initial letters or parts of a series of words, such as radar from ra dio d etecting a nd r anging.
noun
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An initialism.
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A word typically made up of the first letters of two or more words; for example, BASIC stands for "Beginners All purpose Symbolic Instruction Code." Letters within a word are also used; for example, XML means "eXtensible Markup Language."Technically, if only first letters are used, the term is an "initialism," but this distinction is not widely made. For an excellent acronym resource, visit www.acronymfinder.com. See backronym.
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A pronounceable word formed from the beginnings (letter or syllable) of other words and thus representing the phrase so formed, e.g. Benelux = the countries Belgium, Netherlands and Luxembourg considered as a political or economic whole.
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A pronounceable word formed of the initial letters or other parts of several words.An acronym generally comprises all upper case letters. SONET, for example, is the acronym for Synchronous Optical NETwork, a North American standard for fiber optic transmission systems. SONET became internationalized as SDH, an unpronounceable initialism for Synchronous Digital Hierarchy. Acronyms occasionally comprise all lower case letters. For example, bit is the acronym for binary digit, which is the basic unit of information in a binary numbering system. Bit also is a word unto itself, and with multiple meanings, including a small piece of something. Acronyms sometimes comprise both upper case and lower case letters. Sesame, for example, is the acronym for Secure European Systems for Applications in a Multivendor Environment. See also abbreviation, anacronym, backronym, contraction, initialism, and portmanteau.
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An abbreviation formed by (usually initial) letters taken from a word or series of words, that is itself pronounced as a word, such as RAM, radar, or scuba; sometimes contrasted with initialism.
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(deprecated) Any abbreviation so formed, regardless of pronunciation, such as TNT, BBC, IBM, or XML (see usage notes).
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Origin of acronym

  • acr(o)– –onym
    From American Heritage Dictionary of the English Language, 5th Edition
  • acro- +‎ -onym, first attested around 1943.
    From Wiktionary