| Treason 1. (n.) The offense of attempting to overthrow the government of the state to which the offender owes allegiance, or of betraying the state into the hands of a foreign power; disloyalty; treachery. 2. (n.) Loosely, the betrayal of any trust or confidence; treachery; perfidy. Thesaurus Entries Golconda, Machiavellianism, apostasy, backsliding, betrayal, bolt, breach of trust, breakaway, collaboration, crossing-over, deceit, deceitfulness, defection, degeneration, desertion, disloyalty, duplicity, eldorado, faithlessness, fifth-column activity, fraternization, going over, gold mine, high treason, lese majesty, mine, misprision, misprision of treason, perfidiousness, perfidy, petty treason, quislingism, ratting, recidivation, recidivism, recreancy, renunciation, secession, sedition, seditiousness, treacherousness, treachery, treasure, treasure trove, treasure-house, treasury, turning traitor |