How do you abbreviate the word nonfiction?

There isn't a widely accepted abbreviation for "nonfiction." It's generally best to just write out the full word.

Here are some alternatives if you need to shorten it:

* NF: This is sometimes used in libraries and databases but isn't as common as other abbreviations.

* Non-fic: This is a more informal abbreviation that is sometimes used in casual writing.

* Fact: While not a direct abbreviation, this is a common shorthand for nonfiction.

Ultimately, the best option depends on the context of your writing.