Just semantics?

Choosing the right word is of course of capital importance.

But even more importantly, verbalizing that word with just the right amount of punch, finesse, softness, boldness, audaciousness or whatever it takes to articulate the meaning of the word is where most speakers fail.

You have to encapsulate the meaning of the word into the way you pronounce it to impact the psyche of your audience.

Semantics + adapted verbalization makes each word count.