Sponsored post
A sponsored post is one paid piece of content on the creator's own feed: her voice, the brand's message, a visible ad label. It is the base unit of creator marketing, priced by audience, engagement, format and any attached usage. Everything larger — integrations, ambassadorships — is composed from this unit plus terms.
Worked example
One labelled feed post with the brand's product in the creator's normal style, fee covering organic posting only.
Related: Ad disclosure · Brand deal
Full context in the guides, or measure it yourself with the free tools.