markup

noun

1. (countable, uncountable)The percentage or amount by which a seller hikes up their buy-in price when determining their selling price.

   “You don’t make much money selling gas because the markup is so low.”

2. (countable, uncountable)An increase in price.

   “There will be a markup on those products next week; better buy them now.”

3. (countable, uncountable)The notation that is used to indicate the meaning of the elements in an electronic document, or to dictate how text should be displayed.

   “For example, a filename of “home.html” would be appropriate for an ASCII/text file containing HTML markup.”

   “You can display the icon on any site you offer your software for download using the following markup[…]”

4. (US, countable, uncountable)The process by which proposed legislation is debated and amended.