'Famine' in the Bible

And there was a famine in the days of David three years, year after year; and David inquired of Jehovah. And Jehovah said, It is for Saul, and for his house of blood, because he slew the Gibeonites.

And Gad came to David, and told him, and said to him, Shall seven years of famine come to thee in thy land? or wilt thou flee three months before thine adversaries while they pursue thee? or shall there be three days' pestilence in thy land? Now be aware and consider what word I shall bring again to him that sent me.