D defs.my
Entry 4 senses Webster, 1913

Underworld

/ŭn'-dẽrw-ẽrldˌ/ · Un·der·world · IPA /ˈʌndɚˌwɚld/
01 n. The lower of inferior world; the world which is under the heavens; the earth.
  1. 1.
    The lower of inferior world; the world which is under the heavens; the earth.
    “That overspreads (with such a reverence) This underworld.” Daniel.
  2. 2.
    The mythological place of departed souls; Hades.
  3. 3.
    The portion of the world which is below the horizon; the opposite side of the world; the antipodes.[R.]
    “Fresh as the first beam glittering on a sail, That brings our friends up from the underworld.” Tennyson.
  4. 4.
    The inferior part of mankind.[R.]