English

Noun

A-4 ‎(plural A-4s)

1. (military) Skyhawk single engine attack aircraft.
2. (military) Air material and supply officer.
   • 2001, Today's Logistics:

     Deployed to a provisional air base squadron as the LG and serving as an A-4 officer...

3. (military) Material and supply section of an Air Force staff.
   • 1944, AAF The Official Guide To The Army Air Forces:

     A-4 or S-4, performs all staff functions pertaining to supply and maintenance.