What is fantasy?

Wikipedia Explains it this way

Fantasy is a genre of fiction that uses magic and other supernatural phenomena as a primary element of plot, theme, or setting. Many works within the genre take place in imaginary worlds where magic is common. Fantasy is generally distinguished from science fiction and horror by the expectation that it steers clear of (pseudo-)scientific and macabre themes, respectively, though there is a great deal of overlap between the three (which are subgenres of speculative fiction).

What is fantasy to me?

A story is fantasy if it can't be wholly true in every way. I can't think of anything else the definition needs. Clue me in if I'm overlooking something obvious.

A shit-pot of fantasy categories from Wikipedia if your'e interested in exploring What Is Fantasy? further.

• Fantastic art
• Fantasy anime
• Fantasy art
• Fantasy artists
• Fantasy authors
• Fantasy comics
• Fantasy fiction magazine
• Fantasy films
• Fantasy literature
• Fantasy television
• Fantasy webcomics