(noun) one's opponent in a contest, conflict or dispute

Synonym: enemy

Antonym: supporter

Sentence: I entered the ring ready for the match, until my adversary entered and demonstrated his capabilities.

(noun) loyalty or commitment of a subordinate to a superior or of an individual to a group or cause

Synonym: dedication

Antonym: disloyalty

Sentence: Each morning, our school body says the Pledge of Allegiance to the US Flag.

(noun) a person who has defeated all opponents in a competition or series of competitions, so as to hold first place

Synonym: victor

Antonym: loser

Sentence: I crossed the finish line of the 5k in record time and thus was made the Grand Champion of the race.

(noun) the sum of the ideal qualifications of a knight, including courtesy, generosity, valor, and dexterity in arms.

Synonym: valiance

Antonym: cowardness

Sentence: At the dedication of the new memorial in the city square, all the fallen soldiers were known for their chivalry inbattle.

(noun) a person who is often in attendance at the court of a king or other royal personage.

Synonym: attendant

Antonym: manager

Sentence:  The Lead Courtier was five minutes late to the session of Parliament.

(noun) strict observance of promises, duties, etc.

Synonym: loyalty

Antonym: enmity

Sentence: To become the Speaker of the House, you must have great fidelity in order to get your job done successfully.

(noun) an illicit lover, especially of a married person.

Synonym: admirer

Antonym: enemy

Sentence: The bride and groom showed a great deal of paramour throughout the marriage ceremony.

(noun) exceptional valor, bravery, or ability, especially in combat or battle

Synonym: aptitude

Antonym: failure

Sentence: "All of our men and women throughout the armed forces show a great deal of prowess...," said the White House spokesperson.

(verb) to repay; remunerate; reward, as for service, aid, etc.

Synonym: compensation

Antonym: dissatisfaction

Sentence: The company recompensed the order after they delivered it to the wrong household.

(noun) a trial of skill in some game, in which competitors play a series of contests

Synonym: contest

Antonym: peace

Sentence: Sir Ector, Sir Kay and Wart all went to London to see Sir Kay compete in the contest over the British throne.