The
Merriam-Webster
dictionary provides a definition for the word “TREASON” …
1 : the betrayal of a trust : treachery
2 : the offense of attempting by overt acts to overthrow the government of the state to which the offender owes allegiance or to kill or personally injure the sovereign or the sovereign's family
The
Oxford
dictionary, which I usually use online, provides the following
definition …
1[mass noun] The crime of betraying one's country, especially by attempting to kill or overthrow the sovereign or government:
‘they were convicted of treason’
1.1 The action of betraying someone or something:
‘doubt is the ultimate treason against faith’
1.2historical The crime of murdering someone to whom the murderer owed allegiance, such as a master or husband.