There are 15 words that start with 'bubbl'.
| bubble | bubbly | bubbled |
| bubbler | bubbles | bubblers |
| bubblier | bubblies | bubbling |
| bubblegum | bubbliest | bubblegums |
| bubblehead | bubbleheads | bubbleheaded |
Note: These 15 words that start with 'bubbl' are found from the USA & Canada version of the tournament Scrabble word list.