There are 17 words that end with 'dum'.
| sedum | cundum | dirdum |
| dumdum | agendum | papadum |
| smeddum | addendum | corundum |
| poppadum | secundum | pudendum |
| credendum | memorandum | referendum |
| definiendum | corrigendum | |
Note: These 17 words that end with 'dum' are found from the USA & Canada version of the tournament Scrabble word list.