I’m reading a lot of scientific papers at the mo, and every time I read the word equivocal I think “clear”, “definite”. I don’t know if it’s because UNequivocal is more common outside of science, but that’s the link in my brain and I keep having to correct myself.
Corollary is still linked in my mind with something like “the opposite of”.
And a couple of examples from maybe young teenager or pre-teen: adjacent and sprinting (I thought sprinting meant something like jogging; that it was slower than running. Yeah I know there’s a 100m sprint but I hadn’t really thought about it).