Fiji has four letters and its capital, Suva has four letters. :) Peru; capital is Lima Togo; capital is Lomé
Rhea is a bird. It is 4 letters and starts with the letter R.
aqua
No US states have a capital with only 4 letters; they all have 5 letters or more.
The element that is 4 letters and starts with an L is Lead (Pb).
Tern
aare
Sole
amah
club
AVIA
There are two countries that start with the letter "I" with 4 letters. Iran and Iraq