I am very poor at English spelling. Usually nobody give any attention to spelling of your code. Means what name you are giving to your variable. But when it comes to comments and print message suddenly people starts noticing that you have written this spelling incorrect.
Gvim has a facility for spell checking. Use below simple command to enable spelling check feature or write down same in .gvimrc file to enable it every time you open gvim editor.
set spell