This is the 3502nd most frequent Chinese word.
普京
"普京" is the Chinese transliteration for "Putin," referring to Vladimir Putin, the President of Russia.
Here, '普京' is used as a proper noun referring to a specific individual, Vladimir Putin. It is the Chinese transliteration of his name.
普京是俄罗斯的前总统。
Putin is the former president of Russia.
In this sentence, '普京' remains a proper noun but is used as the subject of discussion within the context of the article.
我昨天读了一篇关于普京的文章,非常有趣。
Yesterday, I read an article about Putin, and it was very interesting.
Here, '普京' again serves as a proper noun representing the individual taking action in the diplomatic setting.