fellow
adjective [ before noun ]
uk/ˈfeləʊ/ usused to describe someone who has the same job or interests as you, or is in the same situation as you:
A member of staff was sacked for stealing from fellow employees.
fellow
noun [ C ]
uk/ˈfeləʊ/ usa member of an official organization for a particular subject or job:
She is a fellow of the Royal Institute of Chartered Surveyors.
a research fellow at the Institute for Fiscal Studies
a member of a group of high-ranking teachers at a particular college or university or of a particular educational society:
She is a fellow of All Souls College, Oxford.