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]
(..) Don't you ever want to escape? The master's not as terrible as he appears. Somewhere deep in his soul, there's a prince... of a fellow who just waiting to be set free. Lumière mentioned something about the west wing. Never you mind about that. Off to bed with you, poppet. (..)2017 Beauty and the Beast
(..) No one's gloomy or complaining While the flatware's entertaining We tell jokes, I do tricks With my fellow candlesticks CHORUS: And it's all in perfect taste That you can bet Come on and lift your glass (..)2017 Beauty and the Beast