There are 6 12-letter words that end with 'ron'.
| antielectron | dodecahedron | hymenopteron |
| philodendron | rhododendron | rhombohedron |
Note: These 6 12-letter words that end with 'ron' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with tron, dron, eron, uron, iron, cron, aron, hron, oron, rron, fron, kron, pron, vron, yron.
4-letter words end with 'ron' (1)