chercheur, chercheuse
Tom is the lead researcher.
Tom est le chercheur principal.
Ziri became a researcher.
Ziri est devenue chercheuse.
This researcher does not disclose the source of his funding.
Ce chercheur ne divulgue pas la source de son financement.
The other day, a young researcher asked me something.
L'autre jour, un jeune chercheur m'a posé une question.
— Akira (1988)