This is the 16353rd most frequent Russian word.
ремни
Belts.
In this sentence, 'ремни' refers to 'seat belts', emphasizing their usage for safety purposes in a car.
Автомобильные ремни нужно всегда пристегивать.
Car seat belts must always be fastened.
Here, 'ремни' means 'straps', highlighting the functional components of clothing for fastening or carrying.
На его старой куртке порвались все ремни.
All the straps on his old jacket tore apart.
In this context, 'ремни' represents 'straps', specifically designed for supportive use during physical activities or training.