# <span class=q> Why is a particular word in [[OTCWL]] but not in [[OSPD]]? </span><br /> Although both OTCWL and OSPD are edited by both NASPA and Merriam-Webster, the publications are edited at different times by different individuals according to different criteria. The commonest causes for a word appearing in OTCWL but not in OSPD are: being longer than 8 letters, being potentially offensive, being a possible trademark in some jurisdictions, having entered a source lexicon between the editorial deadlines for the two works, or differing editorial opinions concerning ambiguities in source lexica.
# <span class=q> Can you send me a list of words that are in one lexicon but not in another? </span><br /> For licensing and copyright reasons no, but you can probably make the list yourself using [[NASPA Zyzzyva]].
=== Word List Purchasing, Publishing, Licensing ===
# <span class=q> Do I have to be a NASPA member to buy a copy of the Official Tournament and Club Word List?</span><br /> Yes, licensing conditions have always required vendors to confirm association membership status for word list sales.