There are 18 words that end with 'oining'.
| coining | foining | joining | 
| eloining | groining | quoining | 
| adjoining | cojoining | enjoining | 
| recoining | rejoining | disjoining | 
| conjoining | miscoining | misjoining | 
| purloining | subjoining | interjoining | 
Note: These 18 words that end with 'oining' are found from the USA & Canada version of the tournament Scrabble word list.