Millender is a surname that consists of three syllables. The first syllable is pronounced as /ˈmɪl/ and rhymes with 'hill' or 'pill'. The second syllable is pronounced as /ˈɛn/ and rhymes with 'ten' or 'den'. Lastly, the third syllable is pronounced as /dər/ and rhymes with 'her' or 'fur'. Therefore, the correct pronunciation of "millender" is /ˈmɪl.ɛn.dər/. The spelling of this word follows standard English spelling rules and conventions.