Is there a way to add words to personalized custom Dictionary?

Is there a concept of custom dictionary for each user? I have several jargon words which are custom to my profession. Dictation mode always trips on those words. e.g. “dataswarm”

How do I add these words to my personalized custom dictionary?

Custom shortcuts would be the best solution for those. There’s going to be big improvements to the custom shortcuts interface soon.

I don’t know if we are talking about the same thing. I am not talking about commands. This is about transcribing non-english words e.g. “LipSurf”. Currently I cannot transcribe “LipSurf” when dictating.

Yes, custom shortcuts work for that. You map any word that is easily pronounceable to anything you want (emails, names with accents, hard to pronounce words etc.)