I can do no more than assure you that I do know my own arguments. I am also aware of what the term is considered synonymous with, and depending upon the subject of discussion I would possibly use one of the others. But since the discussion here seems to be one regarding the nature of being (specifically of God), and with the issue of natural vs supernatural, I went with "metaphysical naturalism". It seemed to be more apt.
Do you have issue with the position taken, other than your dislike of the specific term I used?
Semantics? If you mean that your issue is simply about the choice of words I used rather than the meaning then yes, I'd agree, but then semantics is about the meaning of words. You yourself note the synonymity of the terms, so then how can you say it is just a matter of semantics?
And why do you consider the term to be equivocal, given that you seem to know exactly what it refers to? Do you consider "scientific materialism" to be similarly ambiguous a term?