There are 17 words that end with 'tids'.
| ootids | mantids | peptids |
| carotids | hydatids | plastids |
| parotids | caryatids | cricetids |
| lacertids | oribatids | buprestids |
| chromatids | dermestids | spermatids |
| proglottids | proplastids | |
Note: These 17 words that end with 'tids' are found from the USA & Canada version of the tournament Scrabble word list.