a teaching/research 'fellow' [=a graduate student who gets money in exchange for teaching/research]
He attended the concert with a 'fellow' student. [=someone who is a student, as he is]
He has always tried to be of service to 'his fellow man'. [=to other people]
(..) It's my personal prison now. Optimus? Welcome back to the Knights' Temenos, Prime. You have disgraced it. Join your fellow rebels, fugitive scum. It's for the rarest of specimens. The worst of the worst. It's taken centuries, but I've collected all (..)2014 Transformers: Age of Extinction