Sometimes a website or blog traffic up and down encouraging them to use a special keyword. Keyword refers more to what we think by the surfer (or based on the perspective of site visitors) with are written on the Google search box.
With having the right keywords in place its helps you connect with to your search audience. By using a keyword search tool makes this process simple. By being more relevant, you will be pulling in more qualified traffic and raising your keyword quality ranking.
I think you should start with low competition keywords ,it`s easier to get traffic than high competition keywords .
In programming, a keyword is a word that is reserved by a program, because the word has a special meaning. Keywords can be commands or parameters. Every programming language has a set of keywords that can be used as variable names. Keywords are sometimes called reserved names.