Today’s words are Russian words that have made their way into Finnish.
The first word is окно “a window” which travelled from Proto-Slavic language to Finnish as akkuna. Nowadays, the word is ikkuna but most people would also understand “akkuna” as well.
The second word is vaino which means “persecution” and it sounds like война “war” and is likely originated from the Russian word.
The final word is a slang word in Finnish mesta which simply comes from the Russian место and it means “a place”.