Source : Webster's Revised Unabridged Dictionary (1913)

Zulus \Zu"lus\ (z[=oo]"l[=oo]z), n. pl.; sing. {Zulu} (-l[=oo]).
   (Ethnol.)
   The most important tribe belonging to the Kaffir race. They
   inhabit a region on the southeast coast of Africa, but
   formerly occupied a much more extensive country. They are
   noted for their warlike disposition, courage, and military
   skill.

Zulu \Zu"lu\, n. [Also Zooloo.]
   1. Any member of the tribe of Zulus; a Zulu-Kaffir. See
      {Zulus}.

   2. (Philol.) One of the most important members of the South
      African, or Bantu, family of languages, spoken partly in
      Natal and partly in Zululand, but understood, and more or
      less in use, over a wide territory, at least as far north
      as the Zambezi; -- called also {Zulu-Kaffir}.

Source : WordNet®

Zulu
     n 1: a member of the tall Negroid people of southeast Africa
          living in northern Natal
     2: a Bantu language of considerable literary importance in
        southeastern Africa