The word NORBA is spelled with the consonants /n/ and /r/ followed by the vowels /o/ and /a/. In IPA phonetic transcription, it is represented as /'nɔrba/. The letter 'o' is pronounced as an open-mid back rounded vowel, and 'a' as an open front unrounded vowel. The combination of the consonants 'n' and 'r' in this word creates a nasal trill sound which is unique to some languages like Welsh and Xhosa.