There are 12 words that end with 'ylenes'.
| xylenes | amylenes |
| butylenes | ethylenes |
| terylenes | acetylenes |
| methylenes | phenylenes |
| propylenes | isobutylenes |
| polyethylenes | polypropylenes |
Note: These 12 words that end with 'ylenes' are found from the USA & Canada version of the tournament Scrabble word list.