| Dictionary | Name | Region | Valid |
|---|---|---|---|
| Offcl. Scrabble Pl. Dict. & Offcl. Scrabble Words | SOWPODS | International / UK / Australia | YES |
| NASPA Word List 2020 | NWL2020 | USA / Canada / Thailand | YES |
| NASPA Word List 2018 | NWL2018 | USA / Canada / Thailand | YES |
| Tournament Word List 2016 | TWL16 | USA / Canada / Thailand | YES |
| Tournament Word List 2014 | TWL14 | USA / Canada / Thailand | YES |
| Tournament Word List 2006 | TWL06 | USA / Canada / Thailand | YES |
| Tournament Word List 1998 | TWL98 | USA / Canada / Thailand | YES |
| Collins Scrabble Words 2019 | CSW19 | International / UK / Australia | YES |
| Collins Scrabble Words 2015 | CSW15 | International / UK / Australia | YES |
| Collins Scrabble Words 2012 | CSW12 | International / UK / Australia | YES |
| Collins Scrabble Words 2007 | CSW07 | International / UK / Australia | YES |
| Offcl. Scrabble Players Dictionary | OSPD4 | USA / Canada / Thailand | YES |
| Australian Primary Schools | OWL2 | Australia | YES |
| Australian Primary Schools | OWL1 | Australia | YES |
| Words With Friends 2000 | ENABLE2K | Worldwide | YES |
| Words With Friends 1997 (retired) | ENABLE1 | Worldwide | YES |
| Letterpress | Letterpress | Worldwide | YES |
| Yet Another Word List | YAWL | Worldwide | YES |
| Show more | |||
15
C3H4A1L1L1E1N1G2E1
Verb |
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| challenge - issue a challenge to; "Fischer challenged Spassky to a match" | ||
| challenge - take exception to; "She challenged his claims" | ||
| challenge - raise a formal objection in a court of law | ||
| challenge - ask for identification; "The illegal immigrant was challenged by the border guard" | ||
Noun |
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| challenge - a call to engage in a contest or fight | ||
| challenge - a demand by a sentry for a password or identification | ||
| challenge - questioning a statement and demanding an explanation; "his challenge of the assumption that Japan is still our enemy" | ||
| challenge - a formal objection to the selection of a particular person as a juror | ||
| challenge - a demanding or stimulating situation; "they reacted irrationally to the challenge of Russian power" |