What is another word for co-pier?
Pronunciation: [kˈə͡ʊpˈi͡ə] (IPA) 
"Co-pier" is a term often used to refer to the person who assists the pilot in controlling the aircraft. However, there are many synonyms for this word that can be used interchangeably to describe this role. Some popular alternatives include first officer, second pilot, flight engineer, and co-pilot. Each of these phrases describes the same function of supporting the pilot and ensuring smooth flying conditions during the journey. Whether you are in the aviation field or simply need another term to refer to someone who assists another individual, these synonyms provide a useful vocabulary to draw from.
