This is the 17514th most frequent Polish word.
założona
"Założona" means "established" or "founded" in English.
In this sentence, 'założona' is used as a past participle in the passive voice to indicate the founding of a company.
Firma została założona w 1995 roku.
The company was founded in 1995.
Here, 'założona' is used as an adjective describing the state of wearing a jacket.
Masz założona kurtkę na zdjęciu.
You have the jacket on in the picture.
In this context, 'założony' (the masculine form) indicates an action of establishing something.