Correct spelling for the English word "SEGACK" is [sˈɛɡak], [sˈɛɡak], [s_ˈɛ_ɡ_a_k] (IPA phonetic alphabet).
SEGACK is a term that does not have an established meaning or definition in standard dictionaries. It appears to be a specialized or technical term specific to a particular context or field. Therefore, providing a standard dictionary definition for "SEGACK" might not be possible.
To better understand the term, it would be helpful to provide more context or information about its usage or the area it relates to. Is it a jargon used in a particular industry, a technical abbreviation, an acronym, or a term related to a specific concept? Knowing its context would enable a more accurate definition.
In the absence of specific details, it is advisable to consider seeking information from experts or specialists who may have knowledge in the relevant area where "SEGACK" is used. This could include consulting professionals, industry-specific sources, or online forums and communities dedicated to the field in question.