1. a person who pilots or travels in an aircraft, especially a balloon or airship
Usage: somewhat archaic

Examples

• The brave aeronaut prepared for his balloon flight across the English Channel.
• Early aeronauts faced many dangers while exploring the skies in primitive aircraft.
• She became a famous aeronaut in the 1920s, performing daring stunts in her biplane.
• The aeronaut checked his instruments before ascending in the hot air balloon.
• Many aeronauts of the 19th century were pioneers of aviation.
• The experienced aeronaut guided the airship safely through the storm.