Definition of "placeholder" [placeholder]

• One who holds an office or place, especially: (noun)
• One who acts as a deputy or proxy. (noun)
• One who holds an appointed office in a government. (noun)
• In a mathematical or logical expression, a symbol that may be replaced by the name of any element of a set. (noun)
• In the decimal form of a number, a digit that is not significant. (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.

• "The default WordPress Theme features a blue "header" at the top with the title placeholder of your site."
• "What the heck are the Goobermen made of? backtrack a little in the archives, you'll see that the title placeholder for the Clayin Saga has finally been filled."
• "• Insert a new slide with a title placeholder and a bulleted list placeholder (Title and Text)."