Blacklist \Black"list`\, v. t.
   To put in a black list as deserving of suspicion, censure, or
   punishment; esp. to put in a list of persons stigmatized as
   insolvent or untrustworthy, -- as tradesmen and employers do
   for mutual protection; as, to blacklist a workman who has
   been discharged. See {Black list}, under {Black}, a.
   
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         If you blacklist us, we will boycott you. --John
                                                  Swinton.
   
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 black lung