Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
I'm talking physical media: hardcovers, paperbacks, whichever.
While the Kindle editions offer good value for money and look great on an iPad, the paperbacks are a little on the expensive side, so keep that in mind if you want to collect the entire set.