Backlink is to post your websites link on other sites. Increase the number of high quality and relevant backlinks to your website on other do-follow sites, you'll get the high page rank of your website.
As I know then any one can define backlink in different ways but in simple language, link we get from other website or link come from other website called backlink. Backlink is useful to get more traffic & to increase the page rank.
What are "backlinks"? Backlinks are links that are directed towards your website . Also knows as Inbound links (IBL's). The number of backlinks is an indication of the popularity or importance of that website and you can use several web tools to build backlinks to your website. Backlinks are important for SEO because some search engines, especially Google, will give more credit to websites that have a good number of quality backlinks, and consider those websites more relevant than others in their results pages for a search query.
Backlinks are Inbound Links to your Website or in simple words your Website links from other Websites.
However Backlinks are considered to be most important as it is the factor through which your Website's SERP depends, if you get quality backlinks it helps to increase your Website's PR and Keywords Positioning in Search Engines.
A back link is an inward link to your site that may or may not be reciprocated with an outward link back. Backlink is very important part of seo. Backlink is use to improve your ranking in search engine and increase Page Rank.
Backlink is the incoming link to your website from other website, stating that your website is worthy for that particular niche. Google considers backlinks one of the factors for ranking search results.
We know that Backlink is one of the most important for Search Engine Optimization. Backlink means like a vote. When you or anyone put your website URL in another website thatís call backlinks. Like your website is A and if you got a incoming link form B website so itís called you got a Backlink form ďBĒ . So Backlink is those think that you can put on your website link in another website and get more vote and traffic also.