That only serves to confuse the reader. Establish the language and terms you are going to use in your navigation approach and use them exactly as you have defined. Think about it this way. You visit Dublin city centre regularly. Your favourite clothes shop is situated on 'Grafton Street' which is right beside Trinity College.
People are by nature habitual and conservative.
If every couple of months you change the structure and navigation of your website, you will risk alienating those who are regular visitors and have got used to your previous navigation and structure.