ABC

At least four meanings
On July 27, 2006, a Quebecois on Bell “simplified” the disambiguation page by removing all listings but:
 * The Roman alphabet, of which A, B, and C are the first three letters.
 * Atomic, biological, and chemical warfare. A = atomic warfare. B = biological warfare. C = chemical warfare. This abbreviation has largely been superseded by NBC, where the "N" stands for "nuclear".
 * The television network American Broadcasting Corporation.
 * The television network Australian Broadcasting Corporation.