The word "Atter" is spelled with two syllables: /æt-ər/. The first syllable is pronounced with the short "a" sound as in "cat". The second syllable is pronounced with a weak "uh" sound followed by the "r" sound. The spelling of this word does not follow the traditional English phonetic rules, as it ends with two consonants instead of a vowel. It is important to spell words correctly to avoid confusion in communication and to effectively convey meaning in written language.