qián​shuǐ​yuán

diver

潜水员 (潛水員) qián​shuǐ​yuán
diver noun
a person who swims or works underwater, often using specialized breathing equipment or for military purposes

Professional divers are checking the safety of the bridge piers underwater.

Frequency

Movie subtitles
2.50 per million appears in 1% of films
Written text
1.10 per million

Sources

Definitions
CC-CEDICT