Islamic Scarf What Does The Hi-jab (head Scarf) Mean In Islamic Culture?

What does the Hi-jab (head scarf) mean in Islamic culture? - islamic scarf

If it is a symbol of chastity, why Hi-Jab, I see the woman in Toronto was at the BMW and Mercedes? Once I saw a woman with a HELLO-jab, left his BMW M3, with a mini-skirt and high heels.