Strong's #5808: `izzuwz (pronounced iz-zooz')
 from 5810; forcible; collectively and concretely, an army:--power, strong.
Brown-Driver-Briggs Hebrew Lexicon:
 ּּ 
  ‛izzûz 
 
 1) powerful, mighty
 
  Part of Speech: adjective
Relation: from H5810
Usage:
This word is used 2 times:
Psalms 24:8: "King of glory? The LORD  strong and mighty, the LORD mighty in battle."
Isaiah 43:17: "the chariot and horse, the army  and the power; they shall lie down together, they shall not rise:"