Hijab
The Arabic word for "veiling" is hijab. Lexically it means "cover", and in Islam it means two things:
Woman's clothing such as the head-to-toe garment specifically called jilbab and khimar.
Separation of the places where men and women respectively congregate.
Obligation of Hijab as Stated in Qur'an
"O Prophet! Tell your wives and daughters and the women of the believers to draw their cloaks (jalabib) close round them (when they go abroad)..." (33:59)
