"Cognomination" is a rare and complex word that refers to a shared name or title. Its spelling can be tricky but can be explained using IPA phonetic transcription as [kɒɡˌnɒmɪˈneɪʃən]. The first syllable "cog" is pronounced as [kɒɡ], followed by "nomi" that sounds like [nɒmɪ]. The last two syllables "nation" are pronounced as [neɪʃən]. Together, these sounds form the spelling of the unique word "Cognomination".