Keyword
A word you enter in the search box of your browser to start a search.
Keywords are searched in any order so--Phoenix restaurants--means the same as--restaurants Phoenix--to a search engine. You should use spaces to separate keywords.
To search keyword phrases exactly as keyed, use quote marks as in “Phoenix Restaurants”.
The way search engines search, find, and rank Web pages depends on a lot more than just the key words you enter. They use complex, ever-adjusted algorithms to prevent Web sites from manipulating keywords to gain high rankings, so your site rank can change day-to-day.