I know exactly what you mean. If we are to continue with verbal language in very late 3D or during 4D, we will need to come up with new words for the currently ineffable concepts we run into.
In terms of words that don't seem to have plurals, there's definitely a few I've run into. The one I can think of off the top of my head that always shows up as incorrect in spellcheck:
Channelings - Plural of channeling
In terms of words that don't seem to have plurals, there's definitely a few I've run into. The one I can think of off the top of my head that always shows up as incorrect in spellcheck:
Channelings - Plural of channeling