What does gco in stories mean?

"GCO" is not a commonly used abbreviation in stories. It's possible that it's a made-up acronym or a specific term used within a particular story or genre.

Here's what you can do to figure out what "GCO" means:

* Look for context: Check the surrounding text for any clues. Are there any hints about what the acronym might refer to?

* Consider the story's genre: Is it science fiction, fantasy, romance, or something else? The genre might help you narrow down the possibilities.

* Check online resources: Search online for "GCO" within the context of the story or genre. You might find someone else who has already deciphered the acronym.

Without more information about the story, it's impossible to say for sure what "GCO" means.