The word "Brettnie" is not a commonly used word and its spelling may cause confusion. However, its pronunciation can be clarified using IPA phonetic transcription. The transcription for "Brettnie" would be /ˈbrɛtni/, where the "b" is pronounced as "b", the "r" as "r", the "e" as "eh", the "t" as "t", the "n" as "n", and the "i" as "ee". This transcription can help ensure that the word is pronounced correctly, regardless of its unconventional spelling.