Noun

(en noun)

The crime of betraying one’s own country.

*

* 1952 , James Avery Joyce: Justice At Work : (this edition Pan 1957) Page 105.

Formerly, the punishment for high treason was of a most barbarous character…. Women were burnt. A male traitor was dragged or drawn to the place of execution and hanged; but while still alive, he was cut down and disembowelled. His head was then severed from his body which was quartered. The head and quarters, which were at the Kings disposal, were usually exposed in some conspicuous place—the Temple Bar being a favourite spot—after being boiled in salt to prevent putrification and in cumin seed to prevent birds feasting on them.

Providing aid and comfort to the enemy.

Noun

(en noun)

A secret agreement for an illegal purpose; conspiracy.

*{{quote-magazine, date=2013-06-07, author=(Gary Younge)

, volume=188, issue=26, page=18, magazine=(The Guardian Weekly) , title= Hypocrisy lies at heart of Manning prosecution , passage=The dispatches […] also exposed the blatant discrepancy between the west's professed values and actual foreign policies. Having lectured the Arab world about democracy for years, its collusion in suppressing freedom was undeniable as protesters were met by weaponry and tear gas made in the west, employed by a military trained by westerners.}}