This is the 4635th most frequent Russian word.
динамики
"Динамики" in English means "speakers" (audio equipment) or "dynamics" (context-dependent).
Here, 'динамики' refers to 'speakers,' as devices for audio output.
Я купил новые динамики для своей аудиосистемы.
I bought new speakers for my audio system.
In this case, 'динамики' refers to 'dynamics,' meaning the branch of mechanics.
Изучение динамики движения машин помогает инженерам.
Studying the dynamics of vehicle motion helps engineers.
Here, 'динамики' means 'dynamics,' referring to the changing aspects of a topic.