There are 12 words that start with 'floun'.
| flounce | flouncy | flounced | 
| flounces | flounder | flouncier | 
| flouncing | flounders | flounciest | 
| flouncings | floundered | floundering | 
Note: These 12 words that start with 'floun' are found from the USA & Canada version of the tournament Scrabble word list.