There are 14 8-letter words that start with 'obs'.
| obscener | obscured | obscurer | obscures |
| observed | observer | observes | obsessed |
| obsesses | obsessor | obsidian | obsolete |
| obstacle | obstruct | ||
Note: These 14 8-letter words that start with 'obs' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with obse, obst, obsc, obso, obsi.
6-letter words start with 'obs' (1)