If you refer to the PR of a website, then yes PR stands for PageRank. Named after Lary Page ( creator of Google )
lol...exactly pr stands for page rank... For on page and off page seo... To rank your website on google first page and to get high pr(page rank)create backlinks.. generate the organic traffic via forum posting,directory submision,blog commenting,socail bookmark sharing site.. forum posting nad directory submission is most imp as it helps in incresing traffic and creating link.. do blog commenting on sites similar to your website niche.. make your content fresh and unique...above all a blooger need patience and consistence in his work.. Happy blogging..hope it helps you..
PR can stand for page rank, public relations or press release. Whenever it is used in the context of optimisation and authority of websites it is usually page rank. Techniques to boost page rank could be press releases.