TWL vs SOWPODS — Scrabble Dictionary Comparison
If you've ever played Scrabble online or entered a tournament, you've encountered the choice: TWL or SOWPODS? These two dictionaries define the legal words for competitive Scrabble, and the one you play under dramatically affects your strategy. With roughly 90,000 words separating them, understanding the difference isn't just academic — it's the foundation of serious play.
What Are TWL and SOWPODS?
TWL stands for Tournament Word List, the official dictionary maintained by NASPA (North American Scrabble Players Association) for use in the United States, Canada, and Thailand. It contains approximately 190,000 valid words and is sometimes referred to as NWL (NASPA Word List) in its latest editions.
SOWPODS is the combined international dictionary used by the World English-Language Scrabble Players Association (WESPA) for tournaments outside North America. The name is a portmanteau of SOW (the former British list) and PODS (the former North American list). It contains approximately 280,000 words.
~190,000
TWL words
~280,000
SOWPODS words
~90,000
Extra in SOWPODS
2
Major dictionaries
History and Origins
The split between these two dictionaries traces back to the 1970s and 1980s when Scrabble was gaining competitive traction in different English-speaking regions. North America and the rest of the world developed their word lists independently, reflecting regional vocabulary differences.
🧩 Timeline of Scrabble Dictionaries
1978: The Official Scrabble Players Dictionary (OSPD) first published for North American home and school play.
1980s: The Official Tournament and Club Word List (OWL/TWL) created for competitive play — includes offensive words excluded from OSPD.
1991: SOWPODS created by merging the North American TWL and British OSW (Official Scrabble Words) into one unified international list.
2014: The international list rebranded as CSW (Collins Scrabble Words), published by Collins Dictionary. Still commonly called SOWPODS by players.
2020: TWL renamed to NWL (NASPA Word List) to reflect its current maintainer. Content and purpose unchanged.
Key Differences at a Glance
Beyond the raw word count, the two dictionaries differ in philosophy, governance, and practical impact on gameplay. Here's how they compare across every important dimension:
| Feature | TWL / NWL | SOWPODS / CSW |
|---|---|---|
| Word count | ~190,000 | ~280,000 |
| Region | USA, Canada, Thailand | All other countries |
| Governing body | NASPA | WESPA / Collins |
| Update frequency | Every 3-5 years | Every 3-5 years |
| Latest edition | NWL2023 | CSW2021 |
| Includes British spellings | Some | All |
| Challenge rule | Lose turn if wrong | Varies by tournament |
| World Championship | Not used | Official dictionary |
Words Valid in SOWPODS but Not TWL
The approximately 90,000 extra words in SOWPODS include British spellings, Commonwealth English vocabulary, words from South African, Australian, and Indian English, plus archaic and regional terms that never gained traction in North America. These extra words significantly change strategy.
✓ Valid in SOWPODS Only
ZO (Tibetan yak hybrid), CH (archaic pronoun), GI (martial arts uniform), KO (Maori digging stick), OO (Hawaiian bird), DA (Burmese knife). These short words open massive scoring opportunities in international play.
✗ Invalid in TWL
Playing ZO on a Triple Letter Score in a NASPA tournament? That's a lost turn when challenged. Words like QADI, QANAT, TRANQ, and TAJES are SOWPODS-only — memorising them for NA play is wasted effort and dangerous.
📊 Impact on Strategy
SOWPODS players have access to more Q-without-U words (like QI, QADI, QANAT, QOPH, QWERTY), more two-letter words, and more high-scoring short plays. This makes the Q tile less dangerous internationally and changes how players manage racks with Q but no U.
Which Tournaments Use Which Dictionary
The dictionary you play under depends entirely on geography and the organizing body. Here's the breakdown for competitive players who travel between regions:
🇺🇸 TWL / NWL Territories
United States, Canada, Thailand, Israel (some clubs). All NASPA-sanctioned events. National Scrabble Championship (USA). Canadian National Championship. Most online platforms default to TWL for NA players.
🌍 SOWPODS / CSW Territories
United Kingdom, Australia, India, Pakistan, Sri Lanka, Nigeria, Kenya, South Africa, Malaysia, Singapore, Philippines, and 100+ other nations. World Scrabble Championship. All WESPA-rated events worldwide.
💡 The World Championship Question
The World Scrabble Championship uses SOWPODS/CSW. North American players who qualify must learn the extra 90,000 words to compete effectively at the world level. Many top NA players maintain two word sets — their TWL knowledge plus SOWPODS-only words they study separately.
Strategy Tips for Both Dictionaries
Know your dictionary cold: Before any tournament, confirm which dictionary is in use. Playing a SOWPODS-only word in a TWL event costs you your turn and gives your opponent free points from the challenge penalty.
Use a word checker that supports both: Our Scrabble Word Finder lets you toggle between TWL and SOWPODS validation. Always verify words against the correct dictionary before committing them to memory for tournament play.
SOWPODS two-letter words are gold: International players have access to more two-letter words, creating parallel play opportunities that don't exist in TWL. If you're transitioning from TWL to SOWPODS, learning the extra two-letter words gives the highest ROI.
Q management differs by dictionary: In SOWPODS, QI alone makes the Q manageable — it's a two-letter word playable almost anywhere. In TWL, QI is also valid, but fewer Q-without-U options exist overall, making the Q slightly more risky in North American play.
Online play varies by platform: Words With Friends uses its own dictionary (neither TWL nor SOWPODS). Hasbro's official app uses TWL for NA users. ISC (Internet Scrabble Club) lets you choose. Always check settings before playing rated games.
🔤 Try our free Scrabble Word Finder — validates against both TWL and SOWPODS
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