na. | 1. know ... like the palm of one's own hand; as plain as pointing to one's hand; be thoroughly familiar with ...;clear like pointing at a palm; have fully grasped a subject, a situation, etc.; have sth. At one's fingertips; know ... as a person knows his ten fingers; know ... as well as a beggar knows his bag; know ... like a book; know sth. Like the back of one's hand; know ... to one's fingertips; One has the knowledge of sth. So one's palm. |