This is the 4403rd most frequent Polish word.
infrastrukturą
The Polish word "infrastrukturą" means "infrastructure" in English, specifically in its instrumental case form.
In this sentence, 'infrastrukturą' is used as the instrumental case of 'infrastruktura,' indicating the tool or means of investment.
Miasto zainwestowało w nowoczesną infrastrukturą.
The city invested in modern infrastructure.
Here, 'infrastructury' is in the nominative case and denotes the object of impression.
Jestem pod wrażeniem tej nowej infrastruktury.
I am impressed by this new infrastructure.
In this context, 'infrastruktury' (genitive case) describes the type of design the company focius on.