How do I run an application with arguments from the command line without losing the terminal?

How do I run an application with arguments from the command line without
losing the terminal?

Please excuse how naive this question might sound, I'm new to Linux in
general.
I use dwm as a window manager on Ubuntu, I like tiled windows and I like
them as few as possible. I sometimes need to run an application (let's say
it's the pdf viewer mupdf in x11) from the terminal, the application will
be launched in a new window but the terminal from which I launched becomes
this prompt-less console for that application to log whatever.
I use dmenu to launch applications, but sometimes an application needs
arguments (file names) to start. I use uxrvt within x11 managed by dwm.