tè​gōng

special agent

特工 tè​gōng
special agent noun
an individual operative or officer of a secret or intelligence agency

The secret agent successfully infiltrated the enemy's headquarters.

secret service noun
secret government intelligence or security activities and organizations

He has worked as a secret agent for a long time.

Frequency

Movie subtitles
47.3 per million appears in 7% of films
Written text
5.86 per million

Sources

Definitions
CC-CEDICT