Definition of "reproof"

reproof¹

/ɹɪˈpɹuːf/

noun
countable and uncountable, plural reproofs
1. An act or instance of reproving or of reprobating; a rebuke, a reproach, an admonition.
  Quotations
  You could not give me a greater reproof for the mistake I fell into. It was all my doing, I know. I have not forgotten it, I assure you.
  1815, Jane Austen, Emma, volume II, chapter 13

reproof²

/ɹiːˈpɹuːf/

verb
third-person singular simple present reproofs, present participle reproofing, simple past and past participle reproofed
1. To proof again.