The word "Rehberg" is a German surname that is pronounced as /ˈreːhbɛʁk/. The spelling of the word reflects the German phonetic system, in which the letters "h" and "g" can be combined to create the unique sound represented by "gh". Additionally, the vowel combination "er" is pronounced as a single sound, which is why it is spelled as "e" and "r" together. The IPA phonetic transcription helps to explain the specific sounds that make up this word and can aid in correct pronunciation.