WordNet (r) 3.0 (2006):

Shema
    n 1: a liturgical prayer (considered to be the essence of Jewish
         religion) that is recited at least twice daily by adult
         Jewish males to declare their faith; "as soon as Leonard
         learned to talk he was taught to recite the first words of
         the Shema, the creed of Judaism which originated on Sinai
         with Moses and is recited daily"

Easton's 1897 Bible Dictionary:

Shema
   rumour. (1.) A Reubenite (1 Chr. 5:8).

     (2.) A Benjamite (1 Chr. 8:13).

     (3.) One who stood by Ezra when he read the law (Neh. 8:4).

     (4.) A town in the south of Judah (Josh. 15:26); the same as
   Sheba (ver. 5).


Hitchcock's Bible Names Dictionary (late 1800's):

Shema, hearing; obeying