Definition of "tac" []

• A kind of customary payment by a tenant. (noun)
• The drug cannabis. (noun)

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• "Blackhawk has expanded its line of Knoxx Spec Ops shotgun stocks to include a 12-gauge hunting camo version as well as new 20-gauge offerings in tac black."
• "LIPSKY: A tac is a-- is an adult officer who lives with a company."
• "This takes the standard output of tac, which is the GPL in reverse, and sends it to the standard input of less."