The spelling of the word "meren" is phonetically represented as /mɛrɛn/. The first syllable of the word is pronounced with the open-mid vowel /ɛ/ and the second syllable with the mid-central vowel /ə/. The letter "e" is used twice in this word, with each "e" representing a different vowel sound. This illustrates the importance of understanding the IPA phonetic transcription system in order to accurately spell and pronounce words.