Easton's Bible Dictionary (1897)
(Heb. kelub’, Jer. 5:27, marg. “coop;” rendered “basket” in Amos 8:1), a basket of wicker-work in which birds were placed after being caught. In Rev. 18:2 it is the rendering of the Greek phulake, properly a prison or place of confinement.
Smith's Bible Dictionary (1863)
The term so rendered in (Jeremiah 5:27) is more properly a trap in which decoy birds were placed. In (Revelation 18:2) the (Greek term means a prison.