You can define it anyway you want, just don't accept Catholics to accept nor appreciate any change you make.
At this point in my walk I have determined to stay clear of decrees that we have been born into and have, subconsciously, shaped our paradigm. Instead, I have spent the last 15 years studying the context behind the NT (no, not the verse before and after, but rather anything that has any influence on what is written in the NT.... Hebrew idioms or rules of exegesis, ancient near east culture, the languages in use, etc.).