call out

In publishing, a callout or call-out is a short string of text connected by a line, arrow, or similar graphic to a feature of an illustration or technical drawing and giving information about that feature. The term is also used to describe a short piece of text set in larger type than the rest of the page and intended to attract attention. In documents that require translation, a neutral callout is often used. By using numbers or letters as callouts in combination with an image caption, translation becomes more efficient, as the same graphic can be used in all languages.