| Dictionary | Name | Region | Valid |
|---|---|---|---|
| Offcl. Scrabble Pl. Dict. & Offcl. Scrabble Words | SOWPODS | International / UK / Australia | YES |
| NASPA Word List 2020 | NWL2020 | USA / Canada / Thailand | NO |
| NASPA Word List 2018 | NWL2018 | USA / Canada / Thailand | NO |
| Tournament Word List 2016 | TWL16 | USA / Canada / Thailand | NO |
| Tournament Word List 2014 | TWL14 | USA / Canada / Thailand | NO |
| Tournament Word List 2006 | TWL06 | USA / Canada / Thailand | NO |
| Tournament Word List 1998 | TWL98 | USA / Canada / Thailand | NO |
| 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 | NO |
| Australian Primary Schools | OWL2 | Australia | NO |
| Australian Primary Schools | OWL1 | Australia | NO |
| Words With Friends 2000 | ENABLE2K | Worldwide | YES |
| Words With Friends 1997 (retired) | ENABLE1 | Worldwide | NO |
| Letterpress | Letterpress | Worldwide | YES |
| Yet Another Word List | YAWL | Worldwide | YES |
| Show more | |||
7
O1N1C3E1S1
Adverb |
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| once - on one occasion; "once I ran into her" | ||
| once - at a previous time; "at one time he loved her"; "her erstwhile writing"; "she was a dancer once"; | ||
| once - as soon as; "once we are home, we can rest" |