There are 15 words that end with 'iping'.
| piping | siping | 
| riping | wiping | 
| griping | sliping | 
| sniping | swiping | 
| striping | bagpiping | 
| gossiping | filliping | 
| worshiping | sideswiping | 
| fellowshiping | |
Note: These 15 words that end with 'iping' are found from the USA & Canada version of the tournament Scrabble word list.