system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Are there other types of Jedi besides Knights?

Obi Wan tells Luke that his father was a Jedi Knight, but often people will just say Jedi.   
Is that just a shorter term, or are there other hierarchies of Jedi, such as Monks, Lords, etc, who do different things?
gpt
Well, apart from the more well-known Jedi Knights, there are also the various Jedi Service Corps-- an organization consisting of four branches, the Agricultural Corps (which provided supplies to planets that had been devastated by natural disasters or war), Medical Corps (which operated one of the largest and most respected medical facilities in the galaxy), Educational Corps (which operated the Jedi Archives and provided schooling on disadvantaged worlds), and Exploration Corps (which specialized in the archaeology of lost civilizations, as well as the anthropological study of new cultures and welcoming new member worlds into the Republic.) 

These were largely staffed by former younglings and Padawans who proved to not be up to the task of becoming a Jedi Knight, though it was not unheard of for even high-ranking Jedi Masters to decide the lifestyle was no longer for them and ask the council to reassign them to one branch or another of the Service Corps, and it was not seen as a demotion or a lesser career than that of the Jedi Knight by any except the inexperienced and impetuous.

In the aftermath of the Great Jedi Purge, the members of these organizations were arrested and executed or went into hiding, though it is also possible that some Inquisitors may have been former members of the Service Corps.