That’s the wonderful thing about a living language, if enough people start using a new word or a variation on the spelling of an existing one, it can simply become correct at a point.

The compound variant ‘usecase’ is often used in tech and refers to a very specific means in which a system is utilized.

Heh, ‘polyculture’ sounds like a word a friend would use when describing the new folk they’re hanging with after turning a 20-year monogamous marraige into an open relationship.