1. A female instructor.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• instructores,
• unstructress,
• jnstructress,
• knstructress,
• onstructress,
• 9nstructress,
• 8nstructress,
• ibstructress,
• imstructress,
• ijstructress,
• ihstructress,
• inatructress,
• inztructress,
• instructresss,
• instuctress,
• instrutress,
• instrucress,
• instruress,
• instrucetrss,
• instrucetress

• instructor,
• instinctive,
• instrument,
• institute,
• instrumentate,
• instructively,
• instruction,
• instructional,
• instructorship,
• institution,
• instrumentalist,
• instrumental,
• instructive,
• instructed,
• instructions.

The adjective form of the word "instructress" is "instructressive". It is not a commonly used term, and "instructor" is often used as a gender-neutral alternative.

The plural of the "instructress" can be the "instructresses".

The singular of the "instructress" can be the "instructress".