HN
/ˌeɪtʃ ˈɛn/ · Abbreviation · Hacker Culture
Definitions
A common shorthand for Hacker News, the Y Combinator-run social news and discussion site. In conversation it often stands for both the site itself and the specific audience taste or discourse style associated with it.
In plain English: A short way of referring to Hacker News.
Example: "The blog post got traction after someone posted it to HN."