The spelling of the word "Shanklin" is determined by the International Phonetic Alphabet (IPA). According to the IPA, "Shanklin" is pronounced /ˈʃæŋklɪn/. The first syllable "sh-" is represented by the voiceless palato-alveolar fricative /ʃ/, while the vowel sound in the second syllable is represented by the symbol /æ/. The final syllable "lin" is represented by the voiced velar plosive /k/ and the symbol /ɪn/ which represents the vowel sound. Knowing the IPA helps ensure accurate pronunciation of words.