When talking to a new client we are often asked questions about key words. There is an urban myth that key words are very important to achieve a high google ranking.
Clients are usually surprised to learn that they are not that important and may have no significant importance at all.
Google in particluar, does not place emphasis on key words.
(Note: This article refers to the key word meta tag and does not refer to key words
or phrases used in your web page content)