There are 9 12-letter words that start with 'hum'.
| humanenesses | humanitarian | humanization |
| humblenesses | humbuggeries | humification |
| humiliations | hummingbirds | humorousness |
Note: These 9 12-letter words that start with 'hum' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with huma, humi, humo, humb, hump, humm, hume, humd, humu, humv, hums.
4-letter words start with 'hum' (2)