[1] : The Collaborative International Dictionary of English v.0.48

reproof \reproof"\ r?-pr??f", n. oe. reproef. see proof,
   reprove.
   1. refutation; confutation; contradiction. obs.
      1913 webster

   2. an expression of blame or censure; especially, blame
      expressed to the face; censure for a fault; chiding;
      reproach.
      1913 webster

            those best can bear reproof who merit praise.
                                                  --pope.
      1913 webster

   syn: admonition; reprehension; chiding; reprimand; rebuke;
        censure; blame. see admonition.
        1913 webster
see also:
proof reprove admonition 

[2] : WordNet (r) 2.0

reproof
     n : an act or expression of criticism and censure; "he had to
         take the rebuke with a smile on his face" syn: rebuke,
          reproval, reprehension, reprimand
     v : censure severely or angrily; "the mother scolded the child
         for entering a stranger's car"; "the deputy ragged the
         prime minister"; "the customer dressed down the waiter
         for bringing cold soup" syn: call on the carpet, rebuke,
          rag, trounce, lecture, reprimand, jaw, dress
         down, call down, scold, chide, berate, bawl out,
          remonstrate, chew out, chew up, have words, lambaste,
          lambast
see also:
rebuke reproval reprehension reprimand call on the carpet rag 
trounce lecture jaw dress down call down 
scold chide berate bawl out remonstrate 
chew out chew up have words lambaste lambast 

[3] : Moby Thesaurus II by Grady Ward, 1.0

22 moby thesaurus words for "reproof":
   admonishment, admonition, castigation, chastisement, chiding,
   correction, lecture, lesson, objurgation, rap, rating, rebuke,
   reprehension, reprimand, reproach, reprobation, reproval, scolding,
   sermon, spanking, upbraiding, wig

-Reproof >> R Words
-Reproof, definition of term: -Reproof
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