UNISON is the second largest trade union in the United Kingdom with almost 1.3 million members.

In music, unison is two or more musical parts sounding the same pitch or at an octave interval, usually at the same time.

Unison: Rebels of Rhythm & Dance (sometimes known as simply Unison) is a rhythm video game released for the PlayStation 2 in 2001 which featured unique controls and, at the time, beautiful graphics for its genre of game. It is heavily inspired by J-pop, anime and the formation of musical girl groups.