The word "Kadder" is spelled with a hard "K" sound, followed by the short "a" sound as in "cat". This is represented in IPA phonetic transcription as /kædər/. The double "d" in the middle represents a voiced dental fricative sound, similar to the "th" sound in "this". Finally, the word ends with an "er" sound, which is common in English words denoting a person who performs a certain action or profession, such as "coder" or "writer".