Meaning of Tweedledum and Tweedledee

Twee•dle•dum and Twee•dle•dee

Pronunciation: (twēd"l-dum' un twēd"l-dē'), [key]
  1. two persons or things nominally different but practically the same; a nearly identical pair.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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