This is the 7814th most frequent Russian word.
йеллен
It seems "йеллен" isn't a standard Russian word. It might be a name or a misspelling.
The word 'Йеллен' refers to a person's name in a proper noun context.
Йеллен обсуждает экономическую политику на конференции.
Yellen discusses economic policy at the conference.
The word 'Йеллен' is used here to indicate possession and impact, referring again to the person's contributions or statements.
Мнение Йеллен повлияло на решение совета директоров.
Yellen's opinion influenced the decision of the board of directors.
Here, 'Йеллен' signifies the author of the statement, showing a direct link between their action and the observed consequence.