TRex,
dis-tress was intended to refer to you tearing your hair out.
I think that whatever dictionary I link to, people will be dissatisfied whenever that dictionary has no definition for a word in the puzzle - "common" or "rare". And there doesn't appear to be an online dictionary that comes anywhere near covering all the rare words in our list.
I have thought of linking to Wiktionary, and I may yet do that. Or better still, link to
Ninjawords, which supplements the definitions from Wiktionary with definitions from WordNet, a resource from Princeton University.
The
Australian National Dictionary has been accessible online for only a couple of months. It's so recent that I haven't gotten around to linking to it even from my
Ozlip site - a game using an Australian vocabulary. The invaluable print edition of this dictionary was published in 1988, and the long-awaited second edition is expected imminently. No doubt this is part of the explanation for the publisher deciding to put the contents of the old edition online, but it is still a commendable initiative.
I know the Oxford University Press, publisher of the
Australian National Dictionary, has also produced dictionaries of New Zealand and South African English, but I don't think there is any online access to the material in these dictionaries. There is an online
Dictionary of the Scots Language which I have used several times.
Forumites from various countries may know of some online information on the various forms of English.