There are 17 words that end with 'umber'.
| umber | cumber | dumber |
| lumber | number | clumber |
| crumber | plumber | slumber |
| cucumber | encumber | incumber |
| renumber | misnumber | outnumber |
| prenumber | disencumber | |
Note: These 17 words that end with 'umber' are found from the USA & Canada version of the tournament Scrabble word list.