'Booths' in the Bible

And Uriah saith unto David, 'The ark, and Israel, and Judah, are abiding in booths, and my lord Joab, and the servants of my lord, on the face of the field are encamping; and I -- I go in unto my house to eat and to drink, and to lie with my wife! -- thy life, and the life of thy soul -- if I do this thing.'