The correct spelling of the word "orbach" is not clear without further context. It is likely that this word is a proper noun or a surname, making its spelling highly personal and subject to variation. However, to transcribe the pronunciation of "orbach" using IPA phonetics, it might be represented as /ɔːrbʌk/ or /ɔːrbɑːk/. Depending on the speaker's accent, this could vary. It is important to have context when determining the correct spelling and pronunciation of a word.