Removing a key binding

Question

How can I remove a (globally set) key binding? My emacs binds set-mark-command to C-@, C-SPC, and M-SPC by default, and I want to free C-SPC from it without assigning something else within emacs so that I can use that for a keyboard shortcut defined in the OS.

Inconformity

I don't believe it's needed: if a key shortcut is defined in the OS, the OS should grab it and not send it to Emacs. – Hairbrush

Answer 1

Does global-unset-key do the trick?

Nonparous