There are 21 words that start with 'rata'.
| ratal | ratan | ratals | 
| ratans | ratany | ratable | 
| ratably | ratafee | ratafia | 
| ratatat | ratables | ratafees | 
| ratafias | ratanies | rataplan | 
| ratatats | rataplans | rataplanned | 
| ratatouille | rataplanning | ratatouilles | 
Note: These 21 words that start with 'rata' are found from the USA & Canada version of the tournament Scrabble word list.