1) Military rank of Poland 
Poruchik (poručnik, poručík, porucznik, пору́чик, поручник, poručík) is a military rank in several Slavic countries, such as the Russian Empire and the Republic of Poland, equivalent to Lieutenant. `Poruchik` means `messenger`, `officer for orders`. This is a Slavic (Czech) equivalent of the term `Lieutenant` (locum te...