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 ::I am not claiming that ""obvod"", ""okres"" and ""mestská časť"" are the same thing. Obviously you didn't read very carefully my lines. Since I don't see anymore the term obvod being used, I suppose mestska cast is its newer replacement, but I may be wrong. Correct me if so. However I believe you should be more carefull when using the expression You are completely wrong. People might not aprecciate it, especialy if it is you the one who is wrong.Anyway, there is no doubt regarding the need to distinguish okres from city part. What I am saying is just that the term district seems more apropriate, to be used for mestska cast and so only the term for okres need to be chosen. It is definitely important to avoid a huge mess of terms in the long run, however I believe this should be done without inventing expressions which might make laugh native English reader.BTW, the argument about many people having no problems with the term, has very little weight if you consider extremely low quality of the Englished used in the article (I assume we are talking about Bratislava, the version few days ago).  "