The word "REHR" is spelled as R-E-H-R. In IPA phonetic transcription, it is transcribed as /ɹɛɹ/. The first vowel sound in "REHR" is a closed-mid /ɛ/ sound, resembling the vowel sound in "red" or "wet." The consonant sound in the middle is the alveolar approximant /ɹ/, which is similar to the "r" sound found in most English words. The final vowel sound is the same as the first one, making the word end on a soft, almost humming sound (/ɹ/).