  There are many known Arabic lexicons organized on different ways, each of
them has a different number of Arabic words according to its organization way.
This paper has used mathematical relations to count a number of Arabic words,
which proofs the number of Arabic words presented by Al Farahidy. The paper
also presents new way to build an electronic Arabic lexicon by using a hash
function that converts each word (as input) to correspond a unique integer
number (as output), these integer numbers will be used as an index to a lexicon
entry.
