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treason

treason /ˈtriːzn̩/ noun
treason
/ˈtriːzn̩/
noun
Britannica Dictionary definition of TREASON
[noncount]
: the crime of trying to overthrow your country's government or of helping your country's enemies during war
called also high treason

— treasonable

/ˈtriːzənəbəl/ adjective

— treasonous

/ˈtriːzənəs/ adjective