This is the 9043rd most frequent Portuguese word.
aéreos
"Aéreos" means "related to the air" or "airborne."
Here, 'aéreos' describes 'transportes', indicating they relate to air or aviation.
Os transportes aéreos são rápidos.
Air transports are fast.
In this sentence, 'aéreos' qualifies 'exercícios', referring to activities performed in the air or involving airborne movement.
Os exercícios aéreos melhorarão seu equilíbrio.
Aerial exercises will improve your balance.
The term 'aéreos' modifies 'balões', signifying objects that are airborne or floating in the air.