The google definition of kindred spirit is "a person whose interests or attitudes are similar to one's own."
That means that if I were to say to someone "You are a kindred spirit", I am describing them, but them with me as the assumed person being compared to.
I don't have to say "You are a kindred spirit to me" or "You and I are kindred spirits".
Is there a name for this sort of thing? Are there other examples of words like this?