On Dictionary.com, lexicographer Jane Solomon explains that the word influencer has been used in English since the mid-1600s, though back then it wasn’t a job title. In recent years, the term has become a catch-all for a certain kind of career track that is at the center of a burgeoning but profitable industry.

As influencer continues to expand in English and pull new terms and meanings into its orbit, it is worthy of charting from a lexical perspective.