• Well, it is not as commonly used as God (that was a flaw in my analogy, I guess), and I do not know of any kids' books that use it, but I think most Japanese people have at least heard the word and know how it is used. (Silvermaple didn't say it was uncommon, just that people might not be able to define it exactly.) If you had a grandma that used it, you would learn it, because her use of the word