This is the 2995th most frequent Russian word.
дополнительно
Additionally.
In this sentence, 'дополнительно' means 'additionally' or 'more' as in acquiring further information.
Я хочу узнать дополнительно о курсе.
I want to learn more about the course.
Here, 'дополнительно' is used to introduce an additional action or event occurring along with the mentioned context.
Дополнительно к этому, мы организуем экскурсию.
Additionally to this, we are organizing a tour.
In this context, 'дополнительно' refers to 'extra' or 'additional' as in needing to pay an extra fee for the services.