This is the 263rd most frequent Russian word.
эксперт
Expert.
Here, 'эксперт' refers to someone who possesses professional skills or specialized knowledge in a specific field.
Он работает как эксперт по информационной безопасности.
He works as an expert in information security.
'эксперт' in this case is used to denote a knowledgeable individual whose advice is highly valued.
Этот эксперт дал отличные рекомендации для нашего проекта.
This expert provided excellent recommendations for our project.
In this sentence, 'эксперт' signifies a person who has achieved a high level of proficiency and recognition in their discipline.