Brown-Driver-Briggs' Hebrew Definitions
Since it first appeared in the early part of the twentieth century, BDB has been considered the finest and most comprehensive Hebrew lexicon available to the English-speaking student. Based upon the classic work of Wilhelm Gesenius, the "father of modern Hebrew lexicography," BDB gives not only dictionary definitions for words, but relates each word to its Old Testament usage and categorizes its nuances of meaning.
Important Note on Integration: The BDB module can be used as an indendent module to look up words based on their Strongs Number. In addition it will show up as a [BDB] link inside the Strongs Definition of any Old Testament word in any Strongs-Based Bible. Thus, if you are inside the NASS module and you tap on a Strongs Number to view it's definition, a [BDB] link is available to bring up the related BDB entry for that word. The BDB is not integrated into the Analyze Verse "Define" feature because that feature is designed to work with word-based dictionaries and not with Strongs-based dictionaries.