This is the 15950th most frequent Russian word.
профессионал
Professional.
In this sentence, 'профессионал' refers to someone's high level of skill and expertise in their profession.
Он настоящий профессионал в своей области.
He is a true professional in his field.
Here, the term 'профессионал' conveys that the person executes tasks with professionalism and competence.
Она работает как профессионал, всегда выполняя задачи на высшем уровне.
She works like a professional, always performing tasks at the highest level.
In this example, 'профессионал' is used metaphorically to describe a high standard of approach or behavior.