Hide OR Rename Calander IN TOP MENU ONLY

Want to know how to either rename the Calendar in the top menu, or how to hide it in the top menu only
(Hide option so I can re-link with custom tab and name it what I want)

Admin -> Core Features
 Uncheck calendar.

And save

You're my new best friend

Will i still be able to use the Calander if I grab the link and put in a custom menu tab if I uncheck it?

Probably not.
You can disable it under Admin -> Permissions -> modify membergroup

But, admins can always see it.

Im trying to keep the Calander and it's functions but just change the name of "Calander" in the top menu bar, is this possible?

Possible via scripting but not something i know off hand.

I got ya