There are 15 words that end with 'oidies'.
| ploidies | diploidies |
| haploidies | euploidies |
| triploidies | aneuploidies |
| hexaploidies | polyploidies |
| amphiploidies | hyperploidies |
| pentaploidies | tetraploidies |
| heteroploidies | hypodiploidies |
| amphidiploidies | |
Note: These 15 words that end with 'oidies' are found from the USA & Canada version of the tournament Scrabble word list.