The Vulcan salute is known in popular culture as the hand gesture used by the fictional Star Trek alien race known as Vulcans. It's a gesture that involves a raised hand with the fingers split into a V shape, with the thumb extended. However, it has a few different synonyms depending on the context. For example, it's often called the "Spock greeting" or the "live long and prosper" hand sign. Other synonyms include the "V-sign," the "peace sign," and the "Winston Churchill sign." Whatever you want to call it, the Vulcan salute has become a beloved symbol of Star Trek fandom and a cultural icon in its own right.