There are 14 9-letter words that start with 'demo'.
| demobbing | democracy | democrats | 
| demoniacs | demonical | demonised | 
| demonises | demonisms | demonists | 
| demonized | demonizes | demotions | 
| demotists | demounted | |
Note: These 14 9-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)