i Register
In some senses, aero is marked as slang, dated, informal. Watch for register when choosing this word.
adj
Of or pertaining to aviation.
We've seen a lot of growth in the aero sector.
According to aero experts these planes will be capable of carrying six passengers, five machine guns, a special rapid fire aerogun and about fifty bombs, and will be practically immune from injury due to attacks by the light battleplanes […]
Aerodynamic; having an aerodynamic appearance.
It's a very aero design, with smooth lines.
noun
Aerodynamics.
"The biggest difference is aero, which is a really big cut."
An airplane or airship.
Aerospace.