The spelling of the word "Hardwinn" can be explained using the International Phonetic Alphabet (IPA). The first syllable "hard" is pronounced as /hɑrd/ with the "h" being silent, followed by the "a" sound in "father" and ending with the "d" sound. The second syllable "winn" is pronounced as /wɪn/, with the "w" sound followed by the short "i" sound and ending with the "n" sound. Overall, the word is pronounced as /hɑrd.wɪn/.