No. 16,017 in Polish
trzydziestych
"Trzydziestych" means "thirtieth" (plural genitive form) in English.
In a sentence
W trzydziestych latach XX wieku nastąpiło wiele zmian.
In the thirties of the 20th century, many changes occurred.
Here, 'trzydziestych' is used as an ordinal adjective describing the decades of a century.
Budynki tej dzielnicy pochodzą jeszcze z trzydziestych.
The buildings in this district date back to the thirties.
In this sentence, 'trzydziestych' refers to the decade as a standalone period.
Spotkamy się na skrzyżowaniu Trzydziestych i Dziewiętnastych Ulic.
We'll meet at the intersection of Thirtieth and Nineteenth Streets.
Here, 'Trzydziestych' is used as part of a proper name referring to a street.
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