Analyzing which terms search engine users use when looking for something in your niche. It helps you target the terms users search for.
Could be called as keyword research and it's about getting more information about which keywords people using to search for specific market beside estimation of the search volume and cost's for PPC if required
keyword analysis is a careful research on collection of data (keywords) base on number of daily world searches, competition, keyword effectiveness index (KEI) and other factors necessary in determining which keywords or key phrases will help you attract web traffic by ranking high on search engine results page. It's called analysis because you have to perform a process, make comparisons, analyze it deeply and make a wise decision.
Websites are going to be found when people perform queries over the net and using the search engines and links plus contents are helping sites getting found for special terms. Many tools are found online for discovering which world to choose and use.
Researching and segregating buy keywords and info keywords to use in sales pages and traffic funneling websites.
Reads the page you specify and gives a report on what words are used, and how many times they are used.