The meaning of the Acronym TAC is...

TAC is

• Totally Arm Chair
• Talks All Crap
• Take A Crap

More Meanings For TAC:

• The Astronomy Connection
• Telescope Allocation Committee
• Transparent Audio Compression
• Time-to-Amplitude Converter
• Triangle Array Cross
• Total Allowable Catch
• Teach, Advise, and Counsel
• Thomas Aquinas College
• Total Average Cost
• Targeted Amortization Class
• Traffic Acquisition Cost
• The Art Corner
• The Angel Company
• The Adventure Company
• Total Activity Cycle

TAC is also in:

• Accounting
• Astronomy
• Electronics
• Firms
• General
• Mathematics
• Ocean Science
• Universities