There are 15 words that start with 'ramb'.
| rambla | ramble | 
| ramblas | rambled | 
| rambler | rambles | 
| ramblers | rambling | 
| rambutan | rambutans | 
| ramblingly | rambouillet | 
| rambouillets | rambunctious | 
| rambunctiously | |
Note: These 15 words that start with 'ramb' are found from the USA & Canada version of the tournament Scrabble word list.