This is the 13287th most frequent Russian word.
московским
"Of Moscow" or "Moscow's" (adjective, instrumental case, singular).
The word 'московским' is an adjective in instrumental singular form, agreeing with 'профессором' to describe its origin or affiliation related to Moscow.
Мы встретились с московским профессором, чтобы обсудить научные проекты.
We met with the Moscow professor to discuss scientific projects.
Here, 'московским' modifies 'меню' in instrumental singular form to convey a style or characteristic related to Moscow.
Этот ресторан известен своим московским меню.
This restaurant is famous for its Moscow-style menu.
In this case, 'московским' describes 'закатом,' again in instrumental singular form, signifying where the sunset is visually situated, related to Moscow.