Definition of "postscript" [post•script]

• A message appended at the end of a letter after the writer's signature. (noun)
• Additional information appended to the manuscript, as of a book or article. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Eisner's introduction and postscript are the perfect frames for this remix story: in the intro, he talks about his naive use of black stereotypes in his 1950s comic The Spirit, while the postscript is an accessible but learned discussion of the stereotyping that Dickens fell prey to."
• "The interpolated chapters about the paper's past aren't very interesting; the final entry ends with a ghastly shock; and the postscript is too cute."
• "[Return to the letter] 9 This postscript is written up the left margin of MS p. 1."