Keyword

A word which forms (part of) a search engine query.

A word or phrase which implies a certain mindset or demand that targeted prospects are likely to search for. Long tail and brand related keywords are typically worth more than shorter and vague keywords because they typically occur later in the buying cycle and are associated with a greater level of implied intent.

a word that a search engine user might use to find relevant web page(s). If a keyword doesn't appear anywhere in the text of your web page, it's highly unlikely your page will appear in the search results (unless of course you have bid on that keyword in a pay-per-click search engine).

Java sets aside words as keywords - these words are reserved by the language itself and therefore are not available as names for variables or methods.

See "reserved words".

A word or phrase, taken from the title or text of a document, characterizing its content and facilitating its retrieval