The word hijab is referred to as head cover, varies according to the cultural conditions and laws of each country.
Hijab is not limited to chadors. Hijab is sometimes defined in other definition, such as long manteaus and scarves. The manteau covers the body to above the wrist so that the neck and underwear are not visible. Its color and model do not attract non-mahrams' eyes. The headscarf also covers the entirety of the hair, neck, and sometimes chest.
 
Click here to see more photos of Muslim woman hijab.