There are 12 11-letter words that start with 'oc'.
| occasioning | occipitally | occultation |
| occupancies | occupations | occurrences |
| oceanariums | oceanfronts | ochlocratic |
| octagonally | octahedrons | octapeptide |
Note: These 12 11-letter words that start with 'oc' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with oct, occ, oce, och, ocu, oca, ocr, oci, ock, oco.
3-letter words start with 'oc' (1)