There are 17 words that start with 'choi'.
choir | choice | choirs |
choicer | choices | choired |
choicely | choicest | choirboy |
choiring | choirboys | choirgirl |
choiceness | choirgirls | choirmaster |
choicenesses | choirmasters | |
Note: These 17 words that start with 'choi' are found from the USA & Canada version of the tournament Scrabble word list.