Correct spelling for the English word "HPDUC" is [ˌe͡ɪt͡ʃpˈiːdˈʌk], [ˌeɪtʃpˈiːdˈʌk], [ˌeɪ_tʃ_p_ˈiː_d_ˈʌ_k] (IPA phonetic alphabet).
The acronym "HPDUC" does not have an established or widely recognized definition in the English language. It is possible that "HPDUC" is not a common acronym and may be specific to a certain context or organization that has not been widely documented or publicized.
Without further context or information, it is challenging to provide an accurate dictionary definition for "HPDUC." In such cases, it is recommended to consult the relevant source or organization associated with the acronym for a precise understanding. Additionally, one can attempt to decipher the meaning of the acronym based on the words it consists of. However, this may lead to subjective interpretations and might not be reliable as an authoritative definition.
If "HPDUC" is a term or acronym related to a particular subject matter, industry, or organization, providing more details or context would assist in offering a more accurate definition.