Wedge

The term wedge may mean many things. Some of them are as noted below:

Wedge (mechanics) is a simple machine. People use this machine to separate two things. Sometimes, people use a wedge to split a thing into two or more parts, or  to fix things tightly
Wedge product is a term in mathematics
Wedge Antilles is a character in many Star Wars films
Wedge hairstyle, a hairstyle used by the skater named Dorothy Hamill