to know something like the back of one's hand
to know something like the back of one's hand
01
to be well-informed about or completely familiar with something
![to [know] {sth} like the back of {one's} hand definition and meaning](https://cdn.langeek.co/photo/44754/original/?type=jpeg "to [know] {sth} like the back of {one's} hand definition and meaning")
Idiom
Informal
أمثلة
As a history professor, she knows historical events and dates like the back of her hand.
