Croatian language is official language in Republic of Croatia; it is also one of official languages in Bosnia and Hercegovina. Croatian language consists of standard(literary) language and of dialects(cakavski, stokavski, kajkavski). It has a firm internal and proper structure, but with the world development the language is changing and developing itself. It also consists of certain standards and norms. Norms and rules determine what is right and what is not. Standard language as an official langauge is used in media, schools, kindergadens and in public institutions. Croatian is Slavic language that has developed from Preslavic language. Trough the history the language was treathened by other languages such as Turkish, German and Serbian. As a result of that, we now have a lot of the words from the turkish, german and serbian laguage that we use daily, altrough we have credible replacement in our own language. Except those that we mentioned, we have more and more words from English language that, unfortunately, we force upon ourselves. Besides the fact that our language is being ruined by foreign words, it is also ruined by incorrect pronounciation and using of croatian expressions, words, mostly because of the fear and unsufficient knowledge of grammar and our own language