This is the 1606th most frequent Russian word.
тяжести
Weights or burdens.
Here, 'тяжести' refers to heavy objects, showcasing its plural form meaning 'weights' or 'burdens physically'.
Она не могла поднять тяжести из-за слабости.
She could not lift heavy objects due to weakness.
In this sentence, 'тяжести' is used metaphorically to describe an emotional burden or weight.
Его душа страдала от тяжести воспоминаний.
His soul was suffering from the heaviness of memories.
'тяжестей' indicates heavy objects here but in a broader advisory context.