This is the 6202nd most frequent Polish word.
bangkoku
The word "bangkoku" does not exist in the Polish language; it may be a misspelling or a reference to something else.
In this sentence, 'Bangkok' is used as a proper noun referring to a place, the capital city of Thailand.
Byłem w Bangkoku przez tydzień.
I was in Bangkok for a week.
Here, 'Bangkok' again functions as a proper noun, identifying the location where the action took place.
Kupiłem figurkę Buddy w Bangkoku.
I bought a Buddha figurine in Bangkok.
In this example, 'Bangkok' serves as the proper noun indicating the city being discussed.