Correct spelling for the English word "gregauman" is [ɡɹˈɛɡɔːmən], [ɡɹˈɛɡɔːmən], [ɡ_ɹ_ˈɛ_ɡ_ɔː_m_ə_n] (IPA phonetic alphabet).
Apologies, but "gregauman" does not appear to be a term or word with an established dictionary definition. It might be a proper noun, possibly related to a specific individual, company, or a unique term coined by someone or a community. Without further context or information, it is challenging to provide an accurate definition.