господин - a polite address to a man госпожа - a polite address to a woman. These words were used before the Revolution of 1917. They were used as a polite address only to people of high social classes. After the Revolution the word товарищ became a universal address to all people despite their social position and gender. (товарищ Иванов (a man) товарищ Иванова (a woman) ) After Soviet Union period we started to use the words господин and госпожа again. But note, that these words are used only in official letters and during official meetings. We don't use these words as a usual address to all people. гимназия - a school for children in Russia before the Revolution. In Soviet Union - школа Now we use both words. Школа - is a typical, ordinary school. Гимназия - is a sort of privileged school with advanced study of subjects.

губернатор - a governor, a head of a province in pre-revolutionary Russia We started to use this word again in 1990s.

Чувак(n), жесть(n), жжёшь(Continuous tense, v), круто(adv.), зашибись(adv.), офигеть(infinitive, v; but it is often used as "wow" - "wow, this is really cool"), офигенно(adv.), охренеть(infinitive, v; same thing, usually used as "wow"), охрененно(adv.), прикольный(adj.), прикольно(adv.). Am I right, you need words which were not used in USSR, but used now? Or you need words which were used before USSR and which we start using now again? I have written some slang words, but I am not sure now if that is what you need.

полиция, Дума, а также: наркотики разных видов терроризм Words, maybe, return, but their meaning hardly does!

If the base language is Russian, you should have written it in Russian ;)