Definition that contains black hole
- cygnus a constellation in the northern hemisphere between Pegasus and Draco in the Milky Way; contains a black hole
- siraj-ud-daula Indian general and nawab of Bengal who opposed the colonization of India by England; he captured Calcutta in 1756 and many of his prisoners suffocated in a crowded room that became known as the Black Hole of Calcutta; he was defeated at the battle of Plassey by a group of Indian nobles in alliance with Robert Clive (1728-1757)