Correct spelling for the English word "LOUPEUS" is [lˈuːpɪəs], [lˈuːpɪəs], [l_ˈuː_p_ɪ__ə_s] (IPA phonetic alphabet).
"LOUPEUS" is not a recognized English word in any dictionary. It is possible that you have mistyped the word or it could be a term specific to a certain domain or context. Without any additional information or context, it is difficult to provide an accurate definition. However, based on the given word, it is possible that "LOUPEUS" may be a proper noun, acronym, or an invented term.
To understand its meaning, it would be beneficial to provide more information about its origin, context, or the sentence in which it is being used. Additionally, verifying the spelling or considering similar-sounding words may help uncover its intended definition.