通晓

Traditional form:

通曉

Pinyin (reading):

tōngxiǎo

Definitions:

• proficient (in sth)
• to understand sth through and through

Characters:

• 通 - to pass through, to open, to connect; to communicate; common
• 晓 - dawn; clear, explicit, known

Traditional characters:

• 通 - to pass through, to open, to connect; to communicate; common
• 曉 - dawn; clear, explicit, known