From Merriam-Webster Online Dictionary
Main Entry:an·ar·chy
Pronunciation: 'a-n&r-kE, -"när-
Function: noun
Etymology: Medieval Latin anarchia, from Greek, from anarchos having no ruler, from an- + archos ruler -- more at ARCH-
Date: 1539
1 a : absence of government b : a state of lawlessness or political disorder due to the absence of governmental authority c : a utopian society of individuals who enjoy complete freedom without government
2 a : absence or denial of any authority or established order b : absence of order : DISORDER <not manicured plots but a wild anarchy of nature -- Israel Shenker>

From Merriam-Webster Online Dictionary
Main Entry:an·ar·chist
Pronunciation: 'a-n&r-kist, -"när-
Function: noun
Date: 1678
1 : one who rebels against any authority, established order, or ruling power
2 : one who believes in, advocates, or promotes anarchism or anarchy; especially : one who uses violent means to overthrow the established order
- anarchist or an·ar·chis·tic /"a-n&r-'kis-tik, -(")när-/ adjective


From Merriam-Webster Online Dictionary
Main Entry:trai·tor
Pronunciation: 'trA-t&r
Function: noun
Etymology: Middle English traitre, from Old French, from Latin traditor, from tradere to hand over, deliver, betray, from trans-, tra- trans- + dare to give -- more at DATE
Date: 13th century
1 : one who betrays another's trust or is false to an obligation or duty
2 : one who commits treason

Main Entry:trea·son
Pronunciation: 'trE-z&n
Function: noun
Etymology: Middle English tresoun, from Old French traison, from Latin tradition-, traditio act of handing over, from tradere to hand over, betray -- more at TRAITOR
Date: 13th century
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

From Merriam-Webster Online Dictionary
Main Entry:al·le·giance
Pronunciation: &-'lE-j&n(t)s
Function: noun
Etymology: Middle English allegeaunce, modification of Middle French ligeance, from Old French, from lige liege
Date: 14th century
1 a : the obligation of a feudal vassal to his liege lord b (1) : the fidelity owed by a subject or citizen to a sovereign or government (2) : the obligation of an alien to the government under which the alien resides
2 : devotion or loyalty to a person, group, or cause
synonym see FIDELITY
- al·le·giant /-j&nt/ adjective

From Merriam-Webster Online Dictionary
Main Entry:fi·del·i·ty
Pronunciation: f&-'de-l&-tE, fI-
Function: noun
Inflected Form(s): plural -ties
Etymology: Middle English fidelite, from Middle French fidelité, from Latin fidelitat-, fidelitas, from fidelis faithful, from fides faith, from fidere to trust -- more at BIDE
Date: 15th century
1 a : the quality or state of being faithful b : accuracy in details : EXACTNESS
2 : the degree to which an electronic device (as a record player, radio, or television) accurately reproduces its effect (as sound or picture)
synonyms FIDELITY, ALLEGIANCE, FEALTY, LOYALTY, DEVOTION, PIETY mean faithfulness to something to which one is bound by pledge or duty. FIDELITY implies strict and continuing faithfulness to an obligation, trust, or duty <marital fidelity>. ALLEGIANCE suggests an adherence like that of citizens to their country <pledging allegiance>. FEALTY implies a fidelity acknowledged by the individual and as compelling as a sworn vow <fealty to the truth>. LOYALTY implies a faithfulness that is steadfast in the face of any temptation to renounce, desert, or betray <valued the loyalty of his friends>. DEVOTION stresses zeal and service amounting to self-dedication <a painter's devotion to her art>. PIETY stresses fidelity to obligations regarded as natural and fundamental <filial piety>.

From Merriam-Webster Online Dictionary
Main Entry: vig·i·lan·te
Pronunciation: "vi-j&-'lan-tE
Function: noun
Etymology: Spanish, watchman, guard, from vigilante vigilant, from
Latin vigilant-, vigilans
Date: 1865
: a member of a volunteer committee organized to suppress and punish crime summarily (as when the processes of law appear inadequate);
broadly : a self-appointed doer of justice
- vig·i·lan·tism /-'lan-"ti-z&m/ noun