Perfect Pitch?

[Bramble]

So kinda weird question but I was thinking about it again recently. What exactly is it that constitutes as perfect pitch? From what I grasp it's like, you can name a note off sound alone perfectly, but then I see people reference it in terms of like, being able to cover stuff by ear but perhaps it's all one and the same? I only ask cause while I cover by ear pretty well I don't really think I have perfect pitch since I can't name notes perfectly every time they are played, if that makes sense. I've heard of absolute pitch too, but is that just like a weaker perfect pitch? I'm sure someone around here knows something about all this, and I would greatly appreciate the knowledge! Thanks!

EDIT: Thinking about it I've always had this thing like, I can always tell a song is in a different key than normal (like with anime openings or something on Youtube for copyright stuff) and it always has bothered me a lot when things aren't in the right key. I've never had a name for it, but I've noticed that I've had whatever that is for years now. Perhaps related?

[Sky Yoshi]

Simular to this huh?
IDK the answer sorry

[Stratelier]

I know what that's like. Me, I can generally identify what key a song is in but only in terms of tones (i.e., base note, third, fifth, octave). Once I know that I can produce the entire scale for whatever key that is, but I'm hopeless at remembering exactly what note is what (i.e. I couldn't tell you if a given note was an F or B). On the bright side, I can mentally play just about any song I know transposed to any key.

[TheMudkipMaster12]

viewtopic.php?f=17&t=289

This might help