aircraft observer

noun

: a person holding a rating in the U.S. Air Force for any aircrew position except that of pilot

Word History

First Known Use

1950, in the meaning defined above

The Ultimate Dicitonary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now