There are 15 words that start with 'conq'.
| conquer | conquers | 
| conquest | conquian | 
| conquered | conquerer | 
| conqueror | conquests | 
| conquians | conquerers | 
| conquering | conquerors | 
| conquistador | conquistadors | 
| conquistadores | |
Note: These 15 words that start with 'conq' are found from the USA & Canada version of the tournament Scrabble word list.