Dark matter is an enigmatic substance that has puzzled astronomers for decades. It is believed to make up a significant portion of the total matter in the universe but does not emit, absorb or reflect light, making it invisible to telescopes. Therefore, scientists have come up with various synonyms to describe this mysterious substance. Some of the most commonly used synonyms for dark matter include shadow matter, invisible matter, ghost matter, and silent matter. However, despite its elusive nature, researchers continue to study dark matter's properties, hoping to unlock the secrets of the universe and gain a better understanding of its composition and significance in the cosmos.