What is keyword density?

I want to know about the keyword density…

From my friend Wikipedia:

Keyword density is the percentage of times a keyword or phrase appears on a web page compared to the total number of words on the page. In the context of search engine optimization keyword density can be used as a factor in determining whether a web page is relevant to a specified keyword or keyword phrase.

From seochat.com:

Keyword density is important because search engines use this information to categorize a site’s theme, and to determine which terms the site is relevant to. The perfect keyword density will help achieve higher search engine positions. Keyword density needs to be balanced correctly (too low and you will not get the optimum benefit, too high and your page might get flagged for “keyword spamming”).

Here is an effective tool for checking keyword density:
KEYWORD DENSITY CHECKER

Try searching the forums - that question was answered recently in this thread.

Agreed. Thread closed