The spelling of the word "kellum" is a bit unique, as it contains a double-L and a silent E. The IPA phonetic transcription for this word is /ˈkɛləm/. The two L's are pronounced separately, with the first one being emphasized more than the second. The "u" is pronounced as "uh," and the final "m" is not silent. This word is not commonly used, but it is a surname that may be encountered in certain contexts.