iPhone 5c = The "c" meant "cheap"
iPhone 4s, 5s, and 6s = The "s" meant "speed"
iPhone SE 1, 2, and 3 = The "SE" meant "Special Edition"
But after Apple released the iPhone 16e, they haven't said what the "e" means.
Some have said "essentials" and someone else said "expensive".
But still no clue from Apple?
Basically none of that is true