обмен

обмен

Exchange.

Here, 'обмен' refers to the act of exchanging items between individuals.

Мы совершили обмен подарками на Новый год.

We exchanged gifts for New Year.

Here, 'обмен' is used to denote the service of converting money from one currency to another.

Обмен валюты осуществляется в банковских отделениях.

Currency exchange is carried out in bank branches.

In this case, 'обмен' means the exchange of people or roles, specifically in the context of cultural or academic programs.

Обмен студентами между университетами укрепляет международное сотрудничество.

Student exchange between universities strengthens international cooperation.