Correct spelling for the English word "COMPESB" is [kəmpˈɛsb], [kəmpˈɛsb], [k_ə_m_p_ˈɛ_s_b] (IPA phonetic alphabet).
There is no specific definition or commonly known acronym "COMPESB" in any dictionary or recognized field. Hence, no dictionary definition can be provided for this term. It is possible that "COMPESB" is a made-up acronym or a term specific to a certain context or organization. It is crucial to provide more context or information to receive an accurate definition or explanation of the term.