This is the 9303rd most frequent Polish word.
twin
The Polish word "twin" does not exist; you might mean "bliźniak," which means "twin" (a sibling born at the same time) in English.
The word 'bliźniak' in Polish is used to denote a twin sibling, emphasizing family relationships.
Mój brat jest moim bliźniakiem.
My brother is my twin.
Here, 'bliźniak' metaphorically describes a pair of similar objects, often buildings.
Widziałem identyczne budynki - to były bliźniaki.
I saw identical buildings - they were twins.
The term 'bliźniaczy' is an adjective form in Polish, used to describe something closely resembling another item.