Bab
Bab is a term with multiple meanings and uses in Persian and Arabic. In everyday usage, Bab simply means gate or door and appears in numerous toponyms and place-names across the Middle East and Central Asia. Historic gates in cities such as Sana’a and Cairo retain the word in their names, and Bab features widely in street, district, and landmark designations, signaling an entrance or threshold.
In religious history, The Báb (often written Báb) is a title meaning "the Gate" in Arabic and
In Bahá’í teachings the Báb is regarded as a Manifestation of God and the herald of Bahá'u'lláh,