Simply the best
If you can't spare the cash or the space to own The Complete Oxford Dictionary this is the next best thing.My purchase was to update from the third edition.
The Ultimate Dictionary
I have had other dictionaries, however for getting to the grass roots meaning of a particular word, this is the dictionary to have on the bookshelf. It settles all disputes over the correct meaning of words. The CD Rom is excellent as I have it loaded in both my home computer and work laptop.
Best dictionary for the non-fanatic
I did a fair bit of internet research reading to try to determine what the best dictionary was in the $100-$150 range. For the non-fanatic, this 2-volume set covers pretty much everything you need. If you are a word fanatic, then drop $1000 on the 20-volume OED. The layout of the Shorter OED (think "unabridged") is superb, and the entries are up-to-date, unlike the "new" editions of some competing dictionaries. You can't go wrong with this purchase.
Search no more for the perfect dictionary!
Although it arrives in two volumes, it is nonetheless, a near definitive guide for all words English. If you suspect the fellow Scrabble players of cheating, this will be your source.
Very Very Happy
I was reading Mao's The Unknown Story - Chang - in which I came across terms that I seemed unfamiliar with and all I had was my secondary dictionary which was over 25 years old.
Now having an M Ed when I was in a local bookshop I noted that the dictionary set for around $300AUD, from the Publisher they were $375AUD, at Borders (US) they were priced at $225USD so I was pleasently suprised to see them for $85US + postage = $130AUD to my door within 9 days of placing the order.
Text is clear and easy to use and I look forward to using them in the future.
I feel that this set is a totally recommendable purchase for anyone to have.