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Jyutping ou3 ji5 zaap6 ding1
Pinyin ào ěr shí dīng

Definitions (Wiktionary)
  1. name
    Olsztyn Voivodeship (a former voivodeship of Poland)
  2. name
    Olsztyn (the capital and largest city of the Warmian-Masurian Voivodeship, Poland)