This is the 11604th most frequent Russian word.
еженедельную
"Weekly."
In this sentence, "еженедельную" is an adjective describing the noun "встречу", indicating that the meeting occurs weekly.
Каждую субботу мы проводим еженедельную встречу клуба.
Every Saturday, we hold a weekly club meeting.
Here, "еженедельную" modifies the noun "тренировку", demonstrating that the training is conducted on a weekly basis.
Для улучшения навыков, он записался на еженедельную тренировку.
To improve his skills, he signed up for a weekly training.
"Еженедельную" in this context describes the noun "рассылку", showing the periodicity of the news updates as being weekly.