[1] : The Collaborative International Dictionary of English v.0.48

sabaoth \sab"aoth\ sa^b"aslo^th or s.a"b=ao^th;
   277, n. pl. heb. tseb=a'=oth, pl. of ts=ab=a', an
   army or host, fr. ts=ab=a', to go forth to war.
   1. armies; hosts.

   note: used twice in the english bible, in the phrase "the
         lord of sabaoth."
         1913 webster

   2. incorrectly, the sabbath.
      1913 webster

[2] : WordNet (r) 2.0

sabaoth
     n : plural hosts or armies; used in the book of romans in the
         new testament; "lord of sabaoth"

[3] : Easton's 1897 Bible Dictionary

sabaoth
   the transliteration of the hebrew word _tsebha'oth_, meaning
   "hosts," "armies" rom. 9:29; james 5:4. in the lxx. the hebrew
   word is rendered by "almighty." see rev. 4:8; comp. isa. 6:3.
   it may designate jehovah as either 1 god of the armies of
   earth, or 2 god of the armies of the stars, or 3 god of the
   unseen armies of angels; or perhaps it may include all these
   ideas.
   

[4] : Hitchcock's Bible Names Dictionary (late 1800's)

sabaoth, lord of hosts

Sabaoth >> S Words
Sabaoth, definition of term: Sabaoth
sabaoth_pag1.html