Aero has multiple meanings depending on the context. Here are some of the most common meanings:

• Aero as a prefix: Aero is a Greek prefix that means "air" or "flight". It is often used in the context of aeronautics, such as in the words aerodynamics and aerospace engineering.

• Aero as an adjective: In British English, aero is used as an adjective related to flight, such as in the word aeroplane (airplane in American English) .

• Adobe Aero: Adobe Aero is a software that allows users to create augmented reality experiences by overlaying digital content over a live view of their mobile devices camera.

• Aero (company): Aero is a company that offers semi-private jet flights to popular destinations around the world. They provide private terminals, curbside check-in, and other amenities to make the travel experience more comfortable and efficient.

• Other uses: Aero can also refer to a chocolate bar, a character in the Marvel Universe, a Czechoslovak automobile, and a Japanese motorcycle built in the 1920s.

In summary, aero can refer to anything related to flight or air, as well as a specific software, company, chocolate bar, and various other things.