The Oxford Thesaurus An A-Z Dictionary of Synonyms INTRO ...

to a rock as punishment for having brought fire to man.
Marguerite felt chained after twenty years of marriage.
chair n. 1 seat, armchair, stool, bench, easy chair, rocking-chair:
He offered me a chair so I sat down. 2 throne, bench, position,
cathedra, authority; professorship, directorship: Sue has been
offered a chair on the board. 3 chairperson, chairman,
chairwoman, presiding officer, leader, moderator: The chair
ruled on the matter after due consideration.
--v. 4 preside, lead, govern, moderate, run, direct, manage,
oversee: Katherine will chair the meetings during the absence
of the president.
challenge v. 1 question, dispute, defy, object to, take exception to,
contest, doubt, call into doubt, call into or to question,
impugn: I challenge the validity of your accusation. 2 invite,
dare, summon, call out, provoke: The duke was challenged to a
duel. 3 brave, dare, confront, defy, contest: We could
challenge criticism with an easy confidence.
--n. 4 question, dispute, doubt: His opinions are open to
challenge. 5 invitation, dare, summons, provocation,
confrontation, defiance; ultimatum: An older opponent might not
have issued such a challenge. 6 problem, demand, stimulation,
trial, test: Are you sure that Mr Wilson will be able to meet
the challenge of the new position?
chamber n. 1 assembly, body, legislature, judicature, house, congress,
judiciary, senate, diet; consortium: She is entitled to sit in
the Upper Chamber. 2 meeting-hall, reception room, assembly
room: The council chamber was packed with people. 3
compartment, niche, nook, cavity: We hid the gold in a small
chamber in the cave. 4 room, apartment; bedroom, bedchamber:
On the first floor are the magnificent royal chambers.
champion n. 1 victor, winner, conqueror, title-holder, prizewinner,
titleist: She is the women's singles champion for the fourth
year in a row. 2 defender, guardian, protector, hero,
supporter, backer, protagonist, advocate: He acquired a
reputation as champion of the low-paid. 3 fighter, combatant,
hero, warrior, campaigner, veteran: A stouter champion never
handled a sword. The boar is often regarded as the champion