Not Safe For Work (also Not Suitable for Work) (NSFW) is an Internet acronym used in e-mail headers, short messages or in interactive discussion areas (such as chatrooms and blogs) to identify URLs or hyperlinks that may be contain audio, graphic, photographic or video materials that contains profanity, nudity or other potentially objectionable content. It warns the reader so he/she can avoid being exposed to content that may be objectionable or avoid viewing/listening to it in a place where it may lead to embarrassment or punishment.