There are 14 12-letter words that end with 'nized'.
| civilianized | decarbonized | disorganized |
| masculinized | nonunionized | photoionized |
| skeletonized | outorganized | prussianized |
| suburbanized | synchronized | unmechanized |
| unmodernized | unrecognized | |
Note: These 14 12-letter words that end with 'nized' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with onized, anized, inized, enized, rnized, gnized, unized, mnized, nnized.
7-letter words end with 'nized' (2)