I don't know why this is downvoted, it's overstating things a little but there's some truth to it for sure. The other day I was googling for the name of the \mid Latex math symbol. It's basically a pipe with some space around it, a separator line useful in definitions.

So I tried to google various variations of "separator line latex math" but it always synonymed them to include "line break latex", which is obviously "\\" and not what I want.