What technique did Egyptian artists use to paint their relief carvings?

Hieroglyphics

Explanation:

your word would be isle.

isle is an island or peninsula especially a small one.

if you add the letter "a" you get aisle, which is a passage between 2 rows of something like chairs, shelves, or something else.

dc was afraid of these new companies because they may take their customers away due to them being more better or something else.