callout vs pop-up

callout

noun
  • A pull quote: an excerpt from an article (such as in a news magazine) that is duplicated in a large font alongside the article so as to grab a reader's attention and indicate the article's topic. 

  • An outgoing telephone call. 

  • A request for people to join or take part. 

  • An invitation to fight. 

  • A meeting or rally held in order to find interested participants, e.g. for an activity or sports team. 

  • An instance of being summoned to visit a certain place in order to provide assistance; an instance of summoning someone who is on call. 

  • An annotation that pertains to a specific location in a body of text or a graphic, and that is visually linked to that location by a mark or a matching pair of marks. 

  • A form of verbal abuse with the intention to make the victim feel guilty. 

  • The act of calling out from work, i.e. announcing that one cannot attend; the act of calling in sick. 

pop-up

noun
  • A folded paper element which pops up from a book, greeting card, etc. 

  • A pop-up ball: a ball that has been hit to a considerable height above the infield or the shallow outfield; a pop fly. 

  • A business that quickly pops up, such as a temporary restaurant. 

  • A pop-up advertisement; an advertisement that is triggered to appear on a computer screen when an Internet user accesses a particular web page. 

adj
  • Opening out to form a three-dimensional structure when the page of a book is opened. 

  • Coming into view suddenly from a concealed position. 

  • Employing the cold launch technique. 

  • Operating or existing for a brief period only; temporary. 

How often have the words callout and pop-up occurred in a corpus of books? (source: Google Ngram Viewer )