I seriously doubt it’s gonna be one...all of the other ones are super subtle, being used pretty much only once in the entire route. If you haven’t figured it out yet, you can save Oswin from dying
Oh, I know that already, it's just that the word is mentioned too many times for anyone's curiosity to unspark. I already knew about saving Oswin by just not revealing him, but if i revealed him, i just thought that there would be a way to reveal him first without him dying.