Not suitable/safe for work (NSFW), not work-suitable/safe (NWS), not school-suitable (NSS) – or occasionally stronger versions such as not safe for humanity (NSFH) or not safe for life (NSFL) – is Internet slang or shorthand. Typically, the NSFW tag is used in e-mail, videos, and on interactive discussion areas (such as Internet forums, blogs, or community websites) to mark URLs or hyperlinks which contain material such as pornography or profanity, which the viewer may not want to be seen accessing in a public or formal setting such as at work.
NSFW has particular relevance for individuals...