Abbreviation “CW” means “Content Warning.” It’s typically used on social networking platforms like Snapchat, X/Twitter, Instagram, and TikTok. You may see it appear as a hashtag, as well, “#CW.” Which would indicate that shocking content is ahead.
While this abbreviation may be considered safe for work and child friendly. Whatever content that it is referring to will not be. Making it not child safe or appropriate for work.