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