There are 10 14-letter words that start with 'ou'.
| outdatednesses | outgoingnesses |
| outlandishness | outmaneuvering |
| outmanipulated | outmanipulates |
| outpoliticking | outrageousness |
| outreproducing | outsidernesses |
Note: These 10 14-letter words that start with 'ou' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with out, our, ous, oug, ouc, oup, ouz, oua, oub, oud, oui, oun.
3-letter words start with 'ou' (3)