There are 11 words that start with 'quintu'.
| quintuple | quintuply |
| quintupled | quintuples |
| quintuplet | quintuplets |
| quintupling | quintuplicate |
| quintuplicated | quintuplicates |
| quintuplicating | |
Note: These 11 words that start with 'quintu' are found from the USA & Canada version of the tournament Scrabble word list.