There are 10 words that start with 'yupp'.
| yuppy | yuppie | yuppies | 
| yuppify | yuppiedom | yuppieish | 
| yuppified | yuppifies | yuppiedoms | 
| yuppifying | ||
Note: These 10 words that start with 'yupp' are found from the USA & Canada version of the tournament Scrabble word list.