...that there was an ancient Mac version of an app like what you're describing, and it *may* still run in Classic if you can find a copy. That's all I can find, though. Tiger, of course, has the OED built-in, but only in English.
Thank you for your kind response.
Actually, that is the CD I have for the Oxford dictionaries. I wonder, if you think, this CD could work on a new ibook, that is what I don´t understand because the requirement they ask for is MacOS 7.5 and the new computers come with Tiger?
It could work, but it wont work natively in Tiger. Your new iBook will come with the "Classic Environment" which will emulate the old Mac OS (now named 'Classic' was OS 9). However, it sounds like this Dictionary application is pretty old (as it only requires OS 7.5) so may not work at all.