There are 15 words that start with 'obliga'.
| obligate | obligati | obligato |
| obligable | obligated | obligates |
| obligator | obligatos | obligately |
| obligating | obligation | obligators |
| obligatory | obligations | obligatorily |
Note: These 15 words that start with 'obliga' are found from the USA & Canada version of the tournament Scrabble word list.