Standard protocol in the US dictates that the tassel be worn on the right side of one's mortarboard at commencement and then, during the ceremony, moved to the left side. Teachers and administrators at commencement place their tassels on the left. It symbolizes one's transition from candidate to graduate.
copy. 1  an imitation, reproduction, or transcript of an original: a copy of a famous painting. 2  one of the various examples or specimens of the same book, engraving, or the like. 3  written matter intended to be reproduced in printed form: The editor sent the copy for the next issue to the printer.
A copyright is a legal device that gives the creator of a literary, artistic, musical, or other creative work the sole right to publish and sell that work. Copyright owners have the right to control the reproduction of their work, including the right to receive payment for that reproduction. An author may grant or sell those rights to others, including publishers or recording companies. Violation of a copyright is called infringement.