WordNet (r) 3.0 (2006):

Jude
    n 1: (New Testament) supposed brother of St. James; one of the
         Apostles who is invoked in prayer when a situation seems
         hopeless [syn: Jude, Saint Jude, St. Jude, Judas,
         Thaddaeus]
    2: a New Testament book attributed to Saint Jude [syn: Epistle
       of Jude, Jude]

Easton's 1897 Bible Dictionary:

Jude
   = Judas. Among the apostles there were two who bore this name,
   (1) Judas (Jude 1:1; Matt. 13:55; John 14:22; Acts 1:13), called
   also Lebbaeus or Thaddaeus (Matt. 10:3; Mark 3:18); and (2)
   Judas Iscariot (Matt. 10:4; Mark 3:19). He who is called "the
   brother of James" (Luke 6:16), may be the same with the Judas
   surnamed Lebbaeus. The only thing recorded regarding him is in
   John 14:22.