keyword

n. word which explains a code or cipher; important word; word which indicates the subject of a document

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.It may also mean:Keyword (computer programming), an identifier in a computer language that indicates a specific commandKeyword (linguistics), a word that occurs with unexpected frequency in a textKeyword (Internet search), a word used to find useful results in internet searchesSmart keyword, shortcut for bookmarks in Firefox
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n. keyword, word which explains a code or cipher; important word; word which indicates the subject of a document

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.

keyword
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