There are 11 8-letter words that start with 'inst'.
| instable | installs | instance | instancy |
| instants | instated | instates | instills |
| instinct | instroke | instruct | |
Note: These 11 8-letter words that start with 'inst' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with insta, insti, instr, inste.
6-letter words start with 'inst' (4)