What is tbc?

The acronym "TBC" can refer to several different things depending on the context:

Tuberculosis (TB): This is a common context where TBC is used to refer to Tuberculosis, a potentially serious infectious disease that mainly affects the lungs. The disease is caused by the bacterium Mycobacterium tuberculosis. TB is spread through the air when a person with active TB infection of the lungs or throat coughs, speaks, or sings. Symptoms can include coughing (sometimes with blood), chest pains, weakness, weight loss, fever, and night sweats. TB can be fatal if not treated properly with antibiotics.
To Be Confirmed (TBC): In event planning, scheduling, or business communications, TBC is an abbreviation for "To Be Confirmed." It indicates that certain details (like the time, date, or location) are not yet finalized and will be provided at a later time.
The Burning Crusade (TBC): In the context of gaming, TBC refers to "The Burning Crusade," which is the first expansion pack for the MMORPG (massively multiplayer online role-playing game) World of Warcraft, released by Blizzard Entertainment.
Technology Business Certificate (TBC): Sometimes used in education or corporate training, it refers to a certification in technology and business areas, although the term varies with institutions.
Tbilisi Concert Hall (TBC): In some contexts, TBC denotes the Tbilisi Concert Hall, a venue located in Tbilisi, Georgia.

If you meant something different by "TBC," please provide additional context, and I’d be happy to help further!