![pillarbox pillarbox](https://www.tekportal.net/wp-content/uploads/2018/11/pillarbox.jpg)
noun
- a technique for displaying a video recorded in portrait orientation on a wider screen by reducing its size but retaining the aspect ratio, with black bands filling the screen to the right and left of the picture (often used attributively):pillarbox format. Compare letterbox(def 2).
verb (used with object)
- to display (a film or video) by using the pillarbox technique.