The acronym "PAC" can have multiple meanings depending on the context in which it is used. Here are some possible definitions:
1. Political Action Committee - a group formed to support or oppose political candidates, parties or issues through donations and campaign activities.
2. Personal Area Network- A network of devices such as computers, printers, scanners etc that are connected together within a short range using wireless technology for communication between them.
3. Professional Association of Canada - an organization representing professionals in various fields including accountants, lawyers and engineers.