In Hebrew Tsebaoth ????? it means armies. Hebrew is written from right to left because of the ancient need not to stain the papyrus or parchment with your hand as it was written and the ink was fresh. Vowels are usually not written and are put under the consonants so tzade, bet, h muda and tet are written, i.e. sbht The final h is an invention of translators to Greco-Latin phonemes. By extension it is called the heavenly army of Yahweh or Adonai, our God. It is also used (but little) as a nickname of God, as ruler of Israel, of the angels and of the stars. The reason was that the Bible forbade using God's name in vain, and the ancient religious sought alternatives, such as "or as a mute h to write the name of God as an extreme way to ensure that it is used only in the most sacred forms.