A keyword is a word or concept with special significance, in particular any word used as the key to a code or used in a reference work to link to other words or other information.

The term keyword in reference to Search Engine Marketing (SEM) usually refers to a word or keyword phrase (combination of words, such as 'Chicago Courier Service') used to find relevant and useful web pages.

It may also mean:

*Keyword (computer programming), an identifier in a computer language that indicates a specific command
*Keyword (linguistics), a word that occurs with unexpected frequency in a text,or a word which occurs in a text more often than we would expect to occur by chance alone
**Keyword (search) or keyword phrase, a word or phrase to find information in either physical or electronic libraries
**Keyword (Internet search) or keyword phrase, a word or a phrase used to find useful results in internet searches
** Smart keyword, shortcut for bookmarks in Firefox

In a non-computer sense:
* - a 1976 book discussing English words and their cultural use

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Look at other dictionaries:

  • keyword — key‧word [ kiːwɜːd ǁ wɜːrd] noun [countable] COMPUTING a word that you type into a computer so that it will search for that word in a set of documents or on the Internet: • You can search for articles containing a particular keyword. * * *… …   Financial and business terms

  • keyword ad — UK US noun [C] (also keyword advertisement) ► MARKETING, E COMMERCE an advertisement or link to a website that a company pays to have appear on someone s computer screen when they use a particular word or phrase to search for information on the… …   Financial and business terms

  • keyword — key word , n. A word used as an entry point into an index which serves to identify files, records, texts, or other data containing the key or some related word, such as a synonym. It is a type of key[15]; as, a boolean combination of keywords is… …   The Collaborative International Dictionary of English

  • keyword — / ki:wə:d/, it. / ki:word/ s. ingl. [comp. di key chiave e word parola ], usato in ital. al femm. (inform.) [parola di riconoscimento che permette a un calcolatore di identificare un programma e di accedervi] ▶◀ chiave, parola chiave, password …   Enciclopedia Italiana

  • keyword — also key word, 1807, from KEY (Cf. key) (n.1) + WORD (Cf. word) (n.). Originally in reference to codes and ciphers …   Etymology dictionary

  • keyword — /ˈkiword, ingl. ˈkiːˌwYːd/ [vc. ingl., propr. «parola (word) chiave (key)»] s. f. inv. (elab., nelle procedure di ricerca) parola chiave …   Sinonimi e Contrari. Terza edizione

  • keyword — ► NOUN 1) a word which acts as the key to a cipher or code. 2) a word or concept of great significance. 3) a significant word mentioned in an index. 4) a word used in an information retrieval system to indicate the content of a document …   English terms dictionary

  • keyword — [kē′wʉrd΄] n. a word or phrase submitted to a SEARCH ENGINE in an effort to locate relevant documents or websites …   English World dictionary

  • keyword — UK [ˈkiːˌwɜː(r)d] / US [ˈkɪˌwɜrd] noun [countable] Word forms keyword : singular keyword plural keywords 1) [usually singular] a word that represents the main feature or idea of something The office was extremely tidy; efficiency was the keyword …   English dictionary

  • Keyword — Der Begriff Schlüsselwort, englisch keyword, bezeichnet: ein spezielles Wort oder Symbol im Quelltext einer Programmiersprache; siehe Schlüsselwort (Informatik) einen Suchbegriff im Bereich des Internet Marketing; siehe Keyword (Internet… …   Deutsch Wikipedia

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