There are 8 15-letter words that start with 'demo'.
| demobilizations | democratization | 
| demographically | demonetizations | 
| demonstrability | demonstrational | 
| demonstratively | demoralizations | 
Note: These 8 15-letter words that start with 'demo' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with demon, democ, demol, demob, demod, demot, demor, demog, demou, demoi, demos, demoe.
5-letter words start with 'demo' (3)