There are 19 words that start with 'store'.
| store | stored | storer | 
| stores | storey | storers | 
| storeys | storeyed | storeroom | 
| storeship | storewide | storefront | 
| storehouse | storerooms | storeships | 
| storefronts | storehouses | storekeeper | 
| storekeepers | ||
Note: These 19 words that start with 'store' are found from the USA & Canada version of the tournament Scrabble word list.