One who robs at sea or plunders the land from the sea without commission from a sovereign nation. A ship used for this purpose. One who preys on others; a plunderer. One who makes use of or reproduces the work of another without authorization. One that operates an unlicensed, illegal television or radio station.v., -rat·ed, -rat·ing, -rates.
To attack and rob (a ship at sea).
To take (something) by piracy.
To make use of or reproduce (another's work) without authorization.v.intr.
To act as a pirate; practice piracy.

Robbery committed at sea.
A similar act of robbery, as the hijacking of an airplane.
The unauthorized use or reproduction of copyrighted or patented material: software piracy.
The operation of an unlicensed, illegal radio or television station.

software piracy = The illegal copying of software for distribution within the organization, or to friends, clubs and other groups, or for duplication and resale. The software industry loses billions of dollars each year to piracy, and although it may seem innocent enough to install an application on a couple of additional machines, it may ultimately shatter the profitability of a small software company. Software piracy is a major issue in the U.S. and Europe, but it is rampant in the rest of the world where major applications are routinely copied for resale. ‘Software Police' are cracking down hard and the penalties are harsh. ‘Softlifting' recently became a felony with penalties of up to $250,000 and five years in jail.

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