There are 10 5-letter words that start with 'op'.
| opahs | opals | opens | opera | opine |
| oping | opium | opsin | opted | optic |
Note: These 10 5-letter words that start with 'op' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with ope, opp, opt, opa, opi, oph, opu, ops, opo.
3-letter words start with 'op' (3)