gé​xià

you (formal)

阁下 (閣下) gé​xià
you (formal) noun
your distinguished self; a polite second-person pronoun used in formal speech or writing

Your Excellency's insights are indeed brilliant, and I admire them greatly.

excellency noun
your majesty or sire; a formal title used to address high-ranking officials, diplomats, or dignitaries

His Excellency the President will arrive in Beijing this afternoon for a state visit.

Frequency

Movie subtitles
32.6 per million appears in 5% of films
Written text
8.47 per million

Sources

Definitions
CC-CEDICT