This is the 1066th most frequent Russian word.
повысить
"To raise" or "to increase."
In this sentence, "повысить" means to increase or improve something, specifically the level of knowledge.
Я хочу повысить уровень своих знаний в этой области.
I want to raise the level of my knowledge in this field.
Here, "повысить" means to raise monetary compensation for individuals.
Руководство решило повысить зарплаты сотрудникам.
The management decided to increase the employees' salaries.
In this context, "повысить" describes the act of enhancing or strengthening one's position or influence.