The spelling of the word "Corkern" can be explained through the use of the International Phonetic Alphabet (IPA). In this phonetic transcription system, "Corkern" is written as /kɔrˈkɜrn/. The first syllable "kɔr" is pronounced with an 'aw' sound as in "law". The second syllable "kɜrn" is pronounced with a sound similar to the 'ur' in "turkey". By using IPA, we can understand the specific phonemes and sounds that comprise the spelling of the word "Corkern".