深諳

深谙
shēn'ān
  1. (formal) to deeply understand; to be very familiar with
  2. to deeply understand; to be very familiar with

Wiktionary

Homographs

深諳 shēnān
  1. to know (sth) very well
  2. to be an expert in

Entry Composition

=1 深 shēn old variant of 深 shēn
=1 深 shēn deep (lit. and fig.)
2 諳 ān
  1. to be versed in
  2. to know well