<p><strong>Noun</strong></p><ul><li>Informal: raccoon.</li><li>A list of persons under suspicion, disfavor, censure, etc.: His record as an anarchist put him on the government's blacklist.</li><li>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.</li><li>A list drawn up by a labor union, containing the names of employers to be boycotted for unfair labor practices.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to put (a person, group, company, etc.) on a blacklist.</li></ul><p><strong>Synonyms</strong></p><ul><li>ostracize, shun, ban, proscribe, debar, bar, blackball.</li></ul>