There are 13 words that end with 'onine'.
| conine | leonine | saponine |
| pavonine | pyronine | thionine |
| buteonine | ethionine | falconine |
| threonine | vireonine | cinchonine |
| methionine | ||
Note: These 13 words that end with 'onine' are found from the USA & Canada version of the tournament Scrabble word list.