There are 7 15-letter words that start with 'het'.
| heterochromatic | heterochromatin |
| heterogeneities | heterogeneously |
| heteromorphisms | heterosexuality |
| heterothallisms | |
Note: These 7 15-letter words that start with 'het' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with hete, heta, heth, hetm, hets.
4-letter words start with 'het' (2)