This is the 12167th most frequent Polish word.
markami
"Markami" means "brands" or "marks" in the instrumental plural form in Polish.
In this sentence, 'markami' refers to well-known brands, used in the instrumental case after a preposition.
Kupuję różne rzeczy markami, które są znane.
I buy various items from brands that are well-known.
Here, 'markami' denotes the medium or category (premium brands) that sells or is associated with the items, also in the instrumental case.
Samochody sprzedawane markami premium są drogie.
Cars sold by premium brands are expensive.
In this sentence, 'markami' describes specific markers or indicators (brands) used to distinguish teams, instrumental case allowing plural description.