co-pilot
US /ˈkoʊˌpaɪ.lət/
UK /ˈkoʊˌpaɪ.lət/
1.
a pilot who assists the main pilot in an aircraft
:
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The co-pilot checked the pre-flight checklist.
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She trained for years to become a commercial airline co-pilot.
1.
to act as a co-pilot for someone or something
:
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He offered to co-pilot the mission with her.
•
The experienced engineer will co-pilot the new project.