Abbreviations and Acronyms
These two groups are distinguished by whether the shortened form is only used in writing (abbreviations) or in speech as well (acronyms). Acronyms may be pronounced with the name of their letters (e.g. OTP ‘National Savings Bank’ ), or if possible, in full (MÁV ‘Hungarian State Railways’ ). The article preceding these forms is always adapted to the spoken form.
Read more about this topic: Hungarian Orthography