I picked this word because to me it represents strength in what you do. You may talk about a speaker, but once you put the word powerful in front of it, you are stating this person is an expert in what they do and this makes them stand out as powerful. Whatever you are strong in, you are powerful.
I used the word document and decided to take the 3 letters you hear when you break it up into a syllable and left the rest of the letters in a smaller font and the entire word and style is in adobe Gothic. The word powerful alone is strong just by the beginning letters of the three syllables.