Intersex or non-binary (in passports and identification documents).
Suitable only for those aged 16 or (later) 18 years and over.
(movie rating) Obscene.
Used between the names of two characters to denote a ship, particularly in anime, manga, and video games.
Used in place of and in artist collaborations.
Taska Black x DROELOE, Steve Aoki x Lauren Jauregui, etc.