There are 17 words that start with 'overbu'.
| overbuy | overburn |
| overbusy | overbuys |
| overbuild | overbuilt |
| overburns | overburnt |
| overbuilds | overburden |
| overburned | overbuying |
| overburdens | overburning |
| overbuilding | overburdened |
| overburdening | |
Note: These 17 words that start with 'overbu' are found from the USA & Canada version of the tournament Scrabble word list.