This is the 2094th most frequent Russian word.
одновременно
Simultaneously.
Here, 'одновременно' is used to denote two actions occurring at the same time.
Мы смотрели телевизор и играли в настольные игры одновременно.
We were watching TV and playing board games simultaneously.
In this sentence, 'одновременно' is used to mark an event happening at the same time as another event.
Одновременно с дождем начался сильный ветер.
Simultaneously with the rain, a strong wind began.
The word 'одновременно' here emphasizes the capability of performing multiple tasks in parallel.