There are 16 words that end with 'poser'.
| poser | apposer | 
| deposer | exposer | 
| imposer | opposer | 
| reposer | disposer | 
| composer | proposer | 
| supposer | cocomposer | 
| decomposer | interposer | 
| noncomposer | photocomposer | 
Note: These 16 words that end with 'poser' are found from the USA & Canada version of the tournament Scrabble word list.