"Aardvark to Zygote" isn't a "dictionary." It's a compilation of "cross weirds" (words which appear more often in crosswords than in the media or conversation). It is doesn't include the simple words that often appear in crosswords but which the reader/solver no doubt already knows. Nor does it include the difficult words that only a few people would know (or want to know). It includes those "in-between words" which are not commonly used but which, because they use the most common letters of the alphabet, often appear in crosswords. There are two ways to use this collection: If you have the...