This is the 12201st most frequent Polish word.
maxi
"Maxi" in Polish refers to something large, long, or maximum in size.
Here 'maxi' is used as an adjective describing the type of dress, indicating that it is long and reaching the ankles.
Kupuję sukienkę maxi na lato.
I am buying a maxi dress for summer.
In this case, 'maxi' acts as an informal adverb, signifying the maximum duration the films can last, emphasizing the limit.
Filmy trwają zwykle maxi dwie godziny.
Movies usually last maxi two hours.
Used here, 'maxi' modifies an adjective, expressing the extent of involvement in the project as total or reaching the highest degree.