There are 10 12-letter words that start with 'up'.
| upholsterers | upholsteries | upholstering |
| uppercutting | uppishnesses | uppitinesses |
| uppitynesses | uproariously | uprootedness |
| upwardnesses | ||
Note: These 10 12-letter words that start with 'up' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with ups, upr, upt, upb, uph, upp, upg, upc, upl, upd, upw, upf, upe, upm, upa, upk, upo.
3-letter words start with 'up' (2)