The term "twelfth man" is commonly used to describe the devoted fans of a sports team who cheer them on as if they are the additional player on the field. However, there are several other expressions that can be used instead of "twelfth man" such as fan army, loyal supporters, die-hard fans, devoted followers, enthusiastic supporters, passionate fans, and crowd boosters. These terms are often used interchangeably and signify a group of fans that are committed to supporting their team in any way possible. Regardless of what phrase is used, it all comes down to the fact that a team is only as strong as the support they receive from their fans.