This is the 431st most frequent Russian word.
байден
"Байден" is the Russian transliteration of "Biden," referring to Joe Biden, the 46th President of the United States.
The word "Байден" is used here as a proper noun, specifically a last name, referring to a particular individual.
Байден является 46-м президентом Соединённых Штатов.
Biden is the 46th president of the United States.
In this context, "Байден" refers to the individual in relation to their policies, highlighting ownership or relation.
Я прочитал интересную статью о политике Байдена.
I read an interesting article about Biden's policies.
Here, "Байден" is used directly as the subject performing the action.