This is the 215th most frequent Russian word.
использовать
"To use" or "to utilize."
The word 'использовать' here is used in its basic form to mean 'to use' something for a purpose.
Я использую ручку для письма.
I use a pen for writing.
Here, 'использовать' demonstrates the possibility of usage or application for a beneficial purpose.
Эту технологию можно использовать для улучшения качества жизни.
This technology can be used to improve the quality of life.
In this case, 'использовать' is employed to express repetitive or habitual usage of an expression.