Silicene is a novel two-dimensional material, which is a silicon equivalent of graphene that has been extensively researched in recent years. But, there are several synonyms for silicene that can be used interchangeably, such as silicon layer, silicon nanosheet, and ultra-thin silicon. Silicene is known for its unique electronic and structural properties, which have piqued researchers' interest in its potential applications in various fields like electronics and energy storage. These synonyms can be helpful for researchers and scientists who are studying materials that have similar properties to silicene or working on projects related to it.