There are 14 words that start with 'upf'.
| upflow | upfold | upfield |
| upfling | upflows | upflung |
| upfolds | upfront | upflings |
| upflowed | upfolded | upflowing |
| upfolding | upflinging | |
Note: These 14 words that start with 'upf' are found from the USA & Canada version of the tournament Scrabble word list.