There are 14 words that start with 'questi'.
| questing | question |
| questions | questioned |
| questioner | questionary |
| questioners | questioning |
| questionable | questionably |
| questionless | questionaries |
| questionnaire | questionnaires |
Note: These 14 words that start with 'questi' are found from the USA & Canada version of the tournament Scrabble word list.