Difference keyword and co-occurence

[seoanalytics]

Could someone explain me what the difference between a keyword and a co-occurence is ?

Thank you,

[Chris.Menke]

Hi Seoan,

"keyword " is the exact string of letters identified as a search term for which someone may want to rank.

"Co-occurrence" relates to terms that are similar to the keyword or words that often show up near, or along with, a particular keyword.

The "Co-occurrence" thing kinda showed up originally as a foil against early article spinner-type spam tactics that just threw a bunch of words together into sentences and paragraphs peppered with keywords without accounting for actual readability. By building the co-occurrence thing into the algorithm, google required "marketers" to up their game as far as the copy they used on their site.