This is the 584th most frequent Russian word.
понимать
To understand.
This usage of 'понимать' conveys literal comprehension of someone's meaning or thoughts.
Я понимаю, что ты имеешь в виду.
I understand what you mean.
In this sentence, 'понимать' expresses the grasping of knowledge or a subject matter.
Она никогда не понимала математику.
She never understood mathematics.
Here, 'понимать' demonstrates mutual understanding or emotional connection.