1>Punk rock is the anti-establishment music movement of the period 1976-80, exemplified by The Ramones, the Sex Pistols, The Clash, and The Damned. This term is also used to describe subsequent music scenes that share key characteristics with those first-generation "punks." The term is sometimes also applied to the fashions or the irreverent "do-it-yourself" attitude associated with this musical movement.
2>In the mid-1970s, influential punk bands emerged separately in three different corners of the world: The Ramones in New York, The Saints in Australia, and the Sex Pistols, in London. In each case, these bands were operating within a small "scene" which included other bands and solo performers as well as enthusiastic impresarios who operated small nightclubs that provided a showcase and meeting place for the emerging musicians (the 100 Club in London, CBGB's in New York, and The Masque in Hollywood are among the best known early punk clubs).
3>A form of hard-driving rock 'n' roll originating in the 1970's, characterized by harsh lyrics attacking conventional society and popular culture, and often expressing alienation and anger.
4>Punk rock is an anti-establishment rock music movement with origins in the United States and United Kingdom around 1974–1975 (although transitional forms can be found several years earlier), exemplified by the Ramones, the Sex Pistols, The Damned, and The Clash. The term "punk" is also used to describe subsequent music scenes that share key characteristics with those first-generation "punks," and it is often applied loosely to mean any band with "attitude" or "youthful aggression." The term is sometimes also applied to the fashions, ideology, subculture, or irreverent "DIY" ("do it yourself") attitude associated with this musical movement.
Above are some of the definition of punk rock you could found in the .Try to read back all the definition.Can you find the similar term or word using to describe what "punk" is?I could find a few term what is same in use to describe term punk."Attitude","DIY","Enthusiastic Impresarios"Alienation and Anger","Ideology" were a word that repeated and has same meaning in those description.The second def is not a definition but it is describe a punk scenario on that time,but it can be use as a guide to the meaning of punk.Also,the term is refer to first-generation punk exemplified by Ramones,Sex Pistol and The Clash in 1976-80's era of a punk.Maybe today,punk scene is spreading and influenced by other genres and the term is not 100% relevant as describe first-generation punk.Today punk has a mean term and it is a new generation punk evoluting from first-generation punk.There are also,so many band that confess they are punk band but the fact,they lose their punk roots.But there are so many band to that still use old punk roots in playing music and their attitude.Punk bands like Sex Pistol,Ramones and The Clash actually give so many influenced to second generation punk and then to third generation punk.Second generation-punk like Misfits,The Buzzcocks,GBH,The Exploited and Generation X then influenced other band.But the band like Rancid,NOFX,Green Day the third-generation is play excellently with give so many influenced to the new kid in punk rock scene.