There are 12 13-letter words that end with 'ssing'.
| crisscrossing | decompressing |
| dispossessing | misaddressing |
| fiberglassing | intercrossing |
| overfocussing | overstressing |
| prepossessing | preprocessing |
| retrogressing | transgressing |
Note: These 12 13-letter words that end with 'ssing' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with essing, assing, ussing, ossing, issing.
7-letter words end with 'ssing' (24)