This is the 3478th most frequent Russian word.
профессора
"Professora" in Russian means "professors" (plural form).
The word 'профессора' is used in the plural form to refer to professors collectively in the academic setting.
Профессора университета обсуждают научные открытия на конференции.
University professors are discussing scientific discoveries at the conference.
Here, 'профессора' is in the singular accusative form as it refers to a specific professor being met in the library.
Я встретил профессора в библиотеке, и он дал мне полезный совет.
I met the professor in the library, and he gave me useful advice.
In this sentence, 'профессора' is used in the genitive singular form, indicating possession or attributes belonging to the professor.