A woman who is highly experienced and knowledgeable in a particular field, subject, or line of work; expert
A female doyen.
The senior or eldest female member of a group, especially one who is most or highly respected.
An expert in a particular field, especially as called upon to provide comment or opinion in the media; a commentator, a critic.
A native surveyor in British India, trained to carry out clandestine surveillance beyond British borders.
A learned person in India; someone with knowledge of Sanskrit, philosophy, religion and law; a Hindu scholar.