The spelling of the word "Mungcorn" can be explained using the International Phonetic Alphabet (IPA) phonetic transcription. The first syllable "Mung" is pronounced as /mʌŋ/, making use of the stressed lax vowel /ʌ/ and the velar nasal consonant /ŋ/. The second syllable "corn" is pronounced as /kɔːn/, making use of the long open-mid back rounded vowel /ɔː/ and the voiceless velar plosive /k/. Therefore, the correct spelling of the word "Mungcorn" is phonetically represented as /mʌŋ kɔːn/.