There are 11 15-letter words that start with 'q'.
| quadruplicating | quadruplication |
| quadruplicities | quantifications |
| quarrelsomeness | quarterfinalist |
| quatercentenary | querulousnesses |
| quincentenaries | quincentennials |
| quintuplicating | |
Note: These 11 15-letter words that start with 'q' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with qu, qa, qi, qo, qw.
2-letter words start with 'q' (1)