There are 18 words that start with 'chall'.
| challa | chally |
| challah | challas |
| challie | challis |
| challot | challahs |
| challies | challoth |
| challenge | challises |
| challenged | challenger |
| challenges | challengers |
| challenging | challengingly |
Note: These 18 words that start with 'chall' are found from the USA & Canada version of the tournament Scrabble word list.