Official Scrabble Players Dictionary

The Official Scrabble Players Dictionary or OSPD is a dictionary developed for use in the game Scrabble, by speakers of American and Canadian English.

History

Background and creation

The Official Scrabble Players Dictionary was first published in 1978 through the efforts of the National Scrabble Association (NSA) Dictionary Committee and Merriam-Webster, primarily in response to a need for a word authority for NSA-sanctioned clubs and tournaments. Prior to its publication, Scrabble clubs and tournaments used Funk & Wagnalls Standard College Dictionary as an official word source, but as tournament play grew, this source proved unsatisfactory. The inclusion of foreign words such as "Ja" and "Oui", the exclusion of common words such as "coven" and "surreal", and a lack of clear guidance on the creation of comparative terms, were all problematic for Scrabble players.

Games manufacturers Selchow and Righter, the owners of Scrabble at the time, approached Merriam-Webster Inc. to assist with the compilation of an official Scrabble dictionary. They proposed that words should be included in the new dictionary if they appeared in the five in-print collegiate dictionaries, namely The Random House College Dictionary (1968), The American Heritage Dictionary of the English Language (1969), Webster's New World Dictionary (1970), Merriam-Webster's Collegiate Dictionary (1973) and Funk & Wagnalls (1973). Main entries in the OSPD contain from two to eight letters since those are considered to be the most useful.

The compilation was produced by hand and many errata and omissions were later discovered. For example, the word granola was present in all five nominated dictionaries but not in the OSPD. A second edition, OSPD 2, was released in 1991.