–noun
1.
a list of persons under suspicion, disfavor, censure, etc.: His record as an anarchist put him on the government's blacklist.
2.
a list privately exchanged among employers, containing the names of persons to be barred from employment because of untrustworthiness or for holding opinions considered undesirable.
3.
a list drawn up by a labor union, containing the names of employers to be boycotted for unfair labor practices.
As you can see, blacklisting is a list of people in which someone has decided they are untrustworthy or are under suspicion in any way. Since we have been reading The Crucible the last couple weeks, it is pretty obvious how well this fits into the story line. During the Salem Witch Trials, so many were accused and found guilty just by one person who saw them as unfit. Back then, their black list, was of all the women that these young teenage girls accused of being witches. If your name was on that list, then you were a complete outcast and sinner, people saw you as some kind of threat to the community. So many tried their very hardest to stay off that list, but most of the time there wasn't anything they could do. Take Elizabeth Procter for example, she never did anything against the town, and was very religious, but since Abigail was in love with her husband, she was accused and therefore put on the "black list."
I also think that blacklisting is eminent today, there may not be an actual list, but there are always rumors and accusations. Once some rumor gets around, that changes everyones personification of you which then changes how they act around you. Something as little as "blacklisting" can change a person's life.

