There are 8 words that start with 'indoct'.
| indoctrinate | indoctrinated | 
| indoctrinates | indoctrinator | 
| indoctrinating | indoctrination | 
| indoctrinators | indoctrinations | 
Note: These 8 words that start with 'indoct' are found from the USA & Canada version of the tournament Scrabble word list.