This is the 6171st most frequent Polish word.
avia
"Avia" is not a standard Polish word; it may refer to a brand name, company, or another proper noun.
The word 'avia' in this sentence is used as a proper noun, referring to a specific brand name.
Avia była kiedyś marką samochodów.
Avia was once a car brand.
Here, 'avia' is used as a noun suggesting a generalized term for a type of vehicle or transport.
Zawsze marzyłem o podróży avią przez Europę.
I have always dreamed about traveling by avia through Europe.
In this case, 'avia' again functions as a noun referring to a specific vehicle or machinery that requires repair.