A Hebrew month, nearly answering to our April, but varying somewhat from year to year, according to the course of the moon. It was the seventh month of the civil year; but was made the first month of the sacred year, at the coming out of Egypt, Exodus 12:2 . By Moses it is called Abib, Exodus 13:4 . The name Nisan found only after the time of Ezra, and the return from the captivity of Babylon. See MONTIS.