Noun
a crime that undermines the offender's government
Source: WordNetWhile soldiers were winning victories, so-called labor leaders were engaged in high treason. Werner von Blomberg
The perpetrators of the bombing at the Grand Hotel, Brighton, could be hanged for high treason. ... They are just as guilty as Guy Fawkes was 380 years ago. Alfred Denning, Baron Denning
We have legalized confiscation, consecrated sacrilege, and condoned high treason. Benjamin Disraeli
There are only two ways to remove the president - if he violates the constitution or commits high treason. How could anyone accuse me of treason after I had terminated Israel's occupation of South Lebanon in 2000. Emile Lahoud
An exception applies, however, if the individual convicted of high treason receives a full pardon. Source: Internet
Before World War II, Japan had a crime similar to the English crime of high treason (Taigyaku zai), which applied to anyone who harmed the Japanese emperor or imperial family. Source: Internet