noun

treason

treason, betrayal

He was accused of high treason.

He was accused of high treason.

Betraying your friends is a form of treason.

Betraying your friends is a form of treason.

((against sb./sth.)) the crime of betraying one's country He was accused of treason against the state.

Synonyms: betrayal, disloyalty, sedition; Antonyms: loyalty, allegiance

From Old French 'traison' (betrayal), from Latin 'traditio' (a handing over). It shares a root with 'tradition'.

Remember that a 'traitor' commits 'treason'. The sound is similar to 'reason', as in someone having a bad reason to betray their country.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.