The Collaborative International Dictionary of English v.0.48:

Hebrew \He"brew\, n. [F. H['e]breu, L. Hebraeus, Gr. ?, fr. Heb.
   'ibhr[imac].]
   1. An appellative of Abraham or of one of his descendants,
      esp. in the line of Jacob; an Israelite; a Jew.
      [1913 Webster]

            There came one that had escaped and told Abram the
            Hebrew.                               --Gen. xiv.
                                                  13.
      [1913 Webster]

   2. The language of the Hebrews; -- one of the Semitic family
      of languages.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Hebrew \He"brew\, a.
   Of or pertaining to the Hebrews; as, the Hebrew language or
   rites.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Hebrew
    adj 1: of or relating to or characteristic of the Hebrews; "the
           old Hebrew prophets" [syn: Hebraic, Hebraical,
           Hebrew]
    2: of or relating to the language of the Hebrews; "Hebrew
       vowels" [syn: Hebraic, Hebraical, Hebrew]
    n 1: the ancient Canaanitic language of the Hebrews that has
         been revived as the official language of Israel
    2: a person belonging to the worldwide group claiming descent
       from Jacob (or converted to it) and connected by cultural or
       religious ties [syn: Jew, Hebrew, Israelite]

The Devil's Dictionary (1881-1906):

HEBREW, n.  A male Jew, as distinguished from the Shebrew, an
altogether superior creation.