[Aga-chan]

I'm quite sure ayu comes up with the titles herself. Whether she looks them up in a dictionary or not isn't really important, is it? And I still wonder why people say "Greatful days" is Engrish. It's a play on words - like "Mirrorcle World". I think that playing with words like this shows a rather high level of knowledge.

As for the titles for the intros and interludes ayu probably comes up with most of them, too. I don't know about her earlier albums, but I think that since "RAINBOW" (if not earlier) she picks them herself. Because the interludes started to have an image that fits into the album. For "RAINBOW" it was "everlasting dream", "taskinillusion" and "neverending dream".