There are 4 15-letter words that start with 'wh'.
whatchamacallit | whimsicalnesses |
whippersnappers | wholesomenesses |
Note: These 4 15-letter words that start with 'wh' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with whi, whe, who, wha, whu, why.
3-letter words start with 'wh' (3)