There are 22 14-letter words that start with 'mon'.
Note: These 22 14-letter words that start with 'mon' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with mono, mona, mone, moni, mong, mont, monk, mons, monu, mond, monz, mony.
4-letter words start with 'mon' (4)