Ian, you are correct in that we are all amateurs here, all doing what we can to convey concepts and ideas - and that we need to first come to a consensus on which words to use, and what those words mean.
I began with a basic model of experience as 'aware of x' - and so, let's begin with 'aware of' or 'awareness'.
I proposed a definition of 'awareness' as 'being present, being aware', based on a brief inspection of experience anyone can do. As examples, I am aware of a clock on the wall, I am aware of the solidity of my desk, etc. It also includes experiences such as I am happy, I am sad, etc. While we experience a diverse array of content and emotional states, 'being present, being aware' is our most intimate experience, and who we directly know ourselves to be.
Furthermore, awareness as 'being present, being aware' is not a concept, is not an idea we entertain, nor is it an object (of experience). Specifically, while I can assert "I am aware that I am aware", which appears circular or having multiple layers of awareness, yet the claim "I am aware that I am aware" is merely a semantic trick . . . our basic fundamental experience and who we know ourselves to be is 'being present, being aware'.