On earth

prep_phrase

Definitions

Adverb
  1. 1
    used with question words to convey surprise wordnet
Prep_phrase
  1. 1
    Expletive used for emphasis after an interrogative word.

    "Really, if the lower orders don’t set us a good example, what on earth is the use of them? They seem, as a class, to have absolutely no sense of moral responsibility."

  2. 2
    Alternative letter-case form of on earth. alt-of

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Unscramble this word: onearth