(n.) a person who takes part in a crime.

EX. The driver of the getaway car was arrested and tried as an __________ in the daring bank robbery.

Synonyms- partner in crime, confederate

(v.) to destroy completely

Ex.-Throughout history, nations that are bitter enemies have sought to ___________ each other.

Synonyms-obliterate, decimate, demolish

Antonyms- foster, promote, encourage, nuture.

(adj.) unreasonable; based on ones wishes or whims without regard for reason or fairness

Ex.- Ajudge may be critizied for rulings that appear to be _______ and without legal precendent.

Synonyms- capricious, high-handed, autocratic

Antonyms- reasoned, rational, objective, equitable

(n.) made of brass; shameless, imprudent

Ex.- behavior considered _________ in one era may be deemed prefectly acceptable in another.

Synonyms- saucy, bold

Antonyms- deferential, respectful, self-effacing. 

(n.) a substance that causes or hastens a chemical reaction; any agent that causes charges.

Ex.- Enzymes are ______ that aid in the digestion of food.

Synonyms- stimulus, spur, instigator

(n.) A large-scale departure or flight.

Ex.- The __________ of African Americans to the northren states is known as te great migration.

Synonyms- emigration, escape, hegira

Antonyms- immigration, influx, arrival, entrance.

(v.) to make easier; to assist.

Ex.- the federal reserve board may lower intreset rates in order to __________ economic growth.