Copilot
Copilot noun - A relief pilot on an airplane.
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Synonyms for Copilot
Test pilot and copilot are semantically related. In some cases you can use "Test pilot" instead a noun "Copilot".
Test pilot
Test pilot noun - A pilot hired to fly experimental airplanes through maneuvers designed to test them.
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Synonyms for Test pilot
Copilot and test pilot are semantically related. You can use "Copilot" instead a noun phrase "Test pilot".
Mutual synonyms
Cite this Source
Test pilot and Copilot. (2016). Retrieved 2026, August 18, from https://thesaurus.plus/related/copilot/test_pilot
Copilot & Test pilot. N.p., 2016. Web. 18 Aug. 2026. <https://thesaurus.plus/related/copilot/test_pilot>.
Test pilot or Copilot. 2016. Accessed August 18, 2026. https://thesaurus.plus/related/copilot/test_pilot.
Google Ngram Viewer shows how "copilot" and "test pilot" have occurred on timeline