markup

noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about markup at Wordnik → Where our words come from →

1. 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. An increase in price.

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

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