In film editing, a wipe is a gradual spatial transition from one image to another. One image is replaced by another with a distinct edge that forms a shape. A simple edge, an expanding circle, or the turning of a page are all examples.
It is often acknowledged that using a wipe, rather than a simple cut or dissolve is a stylistic choice that inherently makes the audience more "aware" of the film as a film, rather than a story. For example, George Lucas is famous for the sweeping use of wipes in his Star Wars films, which help evoke a kinship to old serialized pulp sci-fi novels and serials; he was inspired by a similar use of wipes by Akira Kurosawa.
The very earliest examples of a wipe are seen as long ago as 1903 in films like Mary Jane's Mishap by George Albert Smith.
The star wipe became popular again in video editing after a very famous scene in The Simpsons in which Homer was editing a dating video for Ned Flanders and didn't realize that there were other wipes in addition to the star wipe. This scene concludes with a star wipe to add more comedy.
Wipes also can be used as syntactic tools, but are often frowned on. Some examples are:
In roleplaying games, especially MMORPGs, a wipe can refer to a situation where an entire group or party is killed by hostile units. This is also called a TPK, or "Total Party Kill."