My Google Sitemaps account list the top keyword with an irrelevant keyword. The word is probably the most used one on my site, but it would be like listing the word "the". Is there a way to make Google ignore words like this? The second word they list is the subject of my site.
Most of the search engines always look for it at its every crawling on your website. You might have the traffic of 2000 to 3000 monthly visits. In that situation this difference may happened for both words sitemap and your site keyword.