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Dictionaries & References

A progressive series of dictionary standards have been used at Australian tournaments over the years. This is partly due to evolution of international consensus and partly due to the changing nature of the English language itself. Words like NEWBIE, EMAIL, WEBSITE, LURVE and HIMBO are not embraced overnight.

Rated tournaments in Australia are currently adjudicated according to Collins Official Scrabble Words word list (or a computer-based equivalent) commonly known as CSW. CSW is the de facto world standard, and is used by many countries around the world as an exclusive reference source for word adjudication. It is also the official dictionary reference source for the World Scrabble Championships.

The Collins zyzzyva computer-based adjudication tool is available for download from : collinsdictionary.com


In use from 31 July 2015:

Collins 2015 Collins Official Scrabble Words (4th edition)
Please note that there are a number of Collins Scrabble titles, the official reference to be used in tournaments has ISBN 978-0-00-758916-6.

In use from 1 Jan 2012 - 31 July 2015:

Collins 2012 Collins Official Scrabble Words (3rd edition)
Please note that there are a number of Collins Scrabble titles, the official reference to be used in tournaments has ISBN 978-0-00-742562-4.

Formerly used:

Collins Collins Scrabble Tournament & Club Word List (15 May 2007 - 31 Dec 2011)
Please note that there are a number of Collins Scrabble titles, the official list used in tournaments has ISBN 978-0-00-725884-0.
Collins Dictionary Collins Official Scrabble Dictionary
Complementary dictionary (second edition) ISBN 978-0-00-725908-3.


Official Scrabble Words International (OSWI)
OSWI
is a combination of words published in the Official tournament and club Word List (OWL) and Official Scrabble Words (OSW) [4th edition].
Official Scrabble Words International (OSWI)
Redwood Redwood International Scrabble Word List
"Redwood" was the first truly international English word authority of its kind.  It was originally published by Hinkler Book Distributors (Melbourne) in 1997.  It is now well superseded. CSWCTL is the preferred replacement.


Other references:

OSW4 Official Scrabble Words (OSW) and The Chambers Dictionary
OSW
is a compilation of words up to 9 letters derived from The Chambers Dictionary (1998 edition).  Both the list and the dictionary are published in Scotland by Chambers Harrap Publishers Ltd (Now part of Vivendi Universal Publishing). OSW was used as an exclusive reference source for word adjudication in the United Kingdom until 2001.
Chambers 1998
Official Tournament and Club Word List (OWL) Official tournament and club Word List (OWL)
Official Tournament and Club Word List or Tournament Word List, referred to as OTaCWL, OWL, or TWL, is the official word authority for tournament Scrabble in North America. The most recent (2nd) version of OWL has not yet been incorporated into the international lexicon, which only includes words in the 3rd edition. OWL is currently used as an exclusive reference source for word adjudication in United States, Canada, Thailand and Israel.
OSPD3 Official Scrabble Players Dictionary (OSPD)
OSPD [4th edition] is a publication derived primarily from the Merriam-Webster's Collegiate Dictionary, Tenth Edition (1993). OSPD also includes words from four other major college dictionaries. It is published by Merriam-Webster in the United States. Unlike previous editions, OSPD [4th edition] excludes words considered (arbitrarily) to be offensive. 
 
ASPA
 
Australian Scrabble® Players Association (ASPA)
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