This is the 17025th most frequent Russian word.
специалистка
Female specialist.
Here, 'специалистка' refers to a professional in a scientific or technical domain, specifically identifying her gender.
Специалистка из лаборатории дала заключение по результатам анализа.
The female specialist from the laboratory provided a conclusion based on the analysis results.
In this context, 'специалистка' describes an expert or teacher focusing on educational activities, again identifying gender.
В образовательном центре работает талантливая специалистка по языковому обучению.
A talented female specialist in language education works at the learning center.
This usage emphasizes professional expertise in creative fields, also highlighting the gender aspect.