I know...dumb question...But I can't figure this out...

I want to open multiple windows of the same app (i.e. terminal). When I Dbl Click terminal, it takes me to the copy that is already running. I want to open a 2nd instance.

Thanks in advance...

Generally one cannot open more than once instance of an application simultaneously; that might result in certain files (like preferences) becoming corrupt through being accessed by more than one process at a time.
However, usually each individual application will allow one to run multiple threads. In this case, go to the Terminal's File menu and select 'New Shell.'

There are several ways to do this. First, if you right-click or click and hold the terminal icon in the dock, a menu will come up. On that menu, click "New Shell" for a new window. You can also use the same command from the "File" menu. The shortcut for this action is ⌘-N.

This is similar for every app where you can open multiple windows.

You could open multiple instances of an app using the "Fast User Switching" feature.

If you really need multiple instances (rather than just multiple windows in the same instance), you can make duplicates of the application in the Finder.

You can also arbitrarily launch multiple instances from Terminal. Just call the app's exectuable file. For example, if I wanted a second Safari, I'd just enter:
/Applications/Safari.app/Contents/MacOS/Safari
And a second Safari would just pop right up.

Mikuro, the first method works, I've used it also. I forgot about that. The second one doesn't seem to, and I've never come across it before.

Thanks Everyone for your help and suggestions. Problem solved!!