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keyword

[kee-wurd] /ˈkiˌwɜrd/
noun
1.
a word that serves as a key, as to the meaning of another word, a sentence, passage, or the like.
2.
a word used to encipher or decipher a cryptogram, as a pattern for a transposition procedure or the basis for a complex substitution.
3.
Also called catchword. Library Science. a significant or memorable word or term in the title, abstract, or text of a document or other item being indexed, used as the index entry.
4.
Digital Technology. a word used to classify or organize digital content, or to facilitate an online search for information: Search the database for the keyword “Ireland.”.
Also, key word.
Origin
1855-1860
1855-60; key1 + word
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for keyword
  • Getting quizzed strengthens memory-jogging keyword clues.
  • keyword searches, for example, return many hits but offer a poor sense of overall trends.
  • On the other hand, it may be that you triggered some keyword threshold.
  • But the trend online is toward short, keyword-heavy descriptors that trade cleverness for clarity.
  • Auctioning keyword search-terms, which deliver sponsored links to advertisers' websites, has proved to be particularly lucrative.
  • The original audio files can then be found using keyword searches.
  • It uses keyword searches to turn up suspect websites.
  • keyword searching is one way to find what you are looking for.
  • Sustainability is the keyword: sustainable economy, sustainable production, sustainable consumption.
  • The reason is that keyword-only searches take you exactly where you want to go if you can figure out the keywords.
British Dictionary definitions for keyword

keyword

/ˈkiːˌwɜːd/
noun
1.
a word used as a key to a code
2.
any significant word or phrase, esp a word used to describe the contents of a document
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for keyword
n.

also key-word, 1807, from key (n.1) + word (n.). Originally in reference to codes and ciphers.

Online Etymology Dictionary, © 2010 Douglas Harper
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keyword in Technology


1. One of a fixed set of symbols built into the syntax of a language. Typical keywords would be if, then, else, print, goto, while, switch. There are usually restrictions about reusing keywords as names for user-defined objects such as variables or procedures. Languages vary as to what is provided as a keyword and what is a library routine, for example some languages provide keywords for input/output operations whereas in others these are library routines.
2. A small set of words designed to convey the subject of a technical article. Some publications specify a fixed set of keywords from which those for a particular article should be chosen.

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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18
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