I get the concepts, I could understand it and feel it.
I could even know how it'll apply, how it could be relevant or not.
I'd still know the possibilities... Or it's impossibilities.
I could have my mind conjure images and sounds of it -- even other senses are involve, I could conjure them. How it'll happen, and how it won't.
Any dimensions of whatever it was, I know it exists.
Yet I forget what it is called -- written and spoken. I'd end up describing it instead of knowing the word itself until no longer momentarily forgotten it, or have it hear or read it again.
Or maybe I didn't knew what it was called to begin with -- heck, it took me more than a DECADE to find out what one of my focus of special interest is called. What more if it isn't?
That's how my processing IS when it comes to language. That's how unreliable words are to me. I'd likely remember the grammar and context than the vocabulary, spelling, and pronunciation. And it doesn't only apply on the word I'm supposed to try to recall what it'll called -- I'll also forget what it is called to describe it, even if I could perceive it, feel it, know scenarios for it... Was this confusing??