TOEFL Must-Have 400 Words : 51-60

1. Authority (n) : The power to make decisions, to tell others what to do; The governor has the authority to call the legislature together for emergency sessions.
2. Battle (v) : To fight against; The Viet Minh battled French forces at Dien Bien Phu for nearly two months in 1954.
3. Be inclined to (v) : To favor an opinion or a course of action; He couldn’t say which candidate he favored, but he had always been inclined to vote Republican.
4. Berate (v) : To say insulting and disrespectful things; The teacher lost his job because he cruelly berated students who made mistakes.
5. Biased (adj) : Leaning unfairly in one direction; Her newspaper article was criticized for being heavily biased toward the mayor’s proposal.
   

   
6. Bitterly (adv) : Strongly and with a lot of bad feelings; Senator Thomas bitterly opposed the movement to design a new state flag.
7. Bond (n) : A close connection; Some researchers say that there is an especially strong emotional bond between twins.
8. Bribery (n) : Giving money or other gifts to a government official or other person in authority in order to get special privileges; Bribery of police officers is common in countries where police salaries are very low.
9. Bulk (n) : Largeness and a heavy appearance; The bulk of Kevin’s athletic body was too great for one small chair, so he sat on a bench.
10. Burden (n) : Something that is carried; a source of stress or worry; The donkey walked slowly under the burden of its heavy load.

TOEFL Must-Have 400 Words : 41-50

1. Artillery (n) : Large guns that shoot powerful shells; army units that handle such guns; An artillery barrage broke down the city’s thick walls within seconds.
2. Ascertain (v) : To make sure of; The police failed to ascertain that the man they arrested was the Gregory Brown they were really looking for.
3. Assail (v) : To attack or criticize forcefully; With DNA evidence from the crime scene, the defense lawyer assailed the police for falsely arresting his client.
4. Assess (v) : To estimate the value of something; The Barnes building was assessed at $1.3 million, but it can probably sell for much more than that.
5. Asset (n) : A possession that has positive value; These constitute the main asset of the government.
   
6. Assimilate (v) : To consume and incorporate; to become similar; Not all of the overseas students could assimilate into the rigidly controlled school.
7. Associate (v) : To regularly spend time together; Carol doesn’t associate with people who smoke.
8. Astrological (adj) : Related to the study of the position of stars, the sun, and the planets in the belief that they influence earthly events; Every day, Mona read her astrological forecast in the newspaper, and she was careful if the horoscope predicted trouble.
9. Atheist (n) : One who does not believe in the existence of a supreme being; He argued that his scientific training made it impossible for him to be anything but an atheist.
10. Augment (v) : To make bigger or better by adding to; In some types of popular cosmetic surgery people augment parts of their bodies.

TOEFL Must-Have 400 Words : 31-40

1. Anesthesia (n) : Techniques for reducing sensation and feeling, especially to control pain; The Civil War was the first American war when anesthesia was widely used in surgery on soldiers.
2. Animism (n) : The belief that natural objects, such as trees, have souls; Desert cultures that practice animism often believe that winds contain spirits.
3. Annex v. To make something (usually land) part of another unit; Bardstown grew by annexing several farms at the north edge of town.
4. Anomaly (n) : Something unusual; White tigers get their beautiful coloring from a genetic anomaly.
5. Anticipate (v) : To expect, to sense something before it happens; By placing sensors in earthquake-prone areas, scientists can anticipate some tremors in time to warn the public.
   

   
6. Antipathy (n) : A strong, long-lasting negative feeling; My antipathy toward telemarketers is so strong that I am often rude to them.
7. Apex (n) : The highest point; Gregory knew that his running skills had to be at their apex during the tournament.
8. Apprehend (v) : To capture; The police apprehended the robbery suspect as he tried to get on a bus to Chicago.
9. Arbitrary (adj) : Chosen simply by whim or chance, not for any specific reason; The decision to build a school in Blackberry Township was arbitrary, without any thought to future housing patterns.
10. Arrogantly (adv) : In a way that shows a high opinion of oneself and a low opinion of others; Jenny told us about her party only one day in advance, arrogantly thinking we had nothing else to do.

Barron's High Frequency 333 GRE Words : 121-130

1. Engender (v) cause, produce; To receive praise for real accomplishments ENGENDERS self-confidence in a child.
2. Enhance (v) increase, improve; You can ENHANCE your chances of being admitted to the college of your choice by learning to write well.
3. Ephemeral (adj) short-lived, fleeting; The mayfly is an EPHEMERAL: its adult life lasts little more than a day.
4. Equanimity (n) calmness of temperament, composure; Even the inevitable strains of caring for an ailing mother did not disturb Bea’s EQUANIMITY.
   
5. Equivocate (v) lie, mislead, attempt to conceal the truth; No matter how bad the news is, give it to us straight, above all, don’t EQUIVOCATE.
6. Erudite (adj) learned, scholarly; Unlike much scholarly writing, Huizinga’s prose was entertaining as well as ERUDITE, lively as well as learned.
7. Esoteric (adj) hard to understand; Known only to the chosen few New Yorker short stories often include ESOTERIC allusions to obscure people and events.
8. Eulogy (n) expression of praise, often on the occasion of someone’s death; Instead of delivering a spoken EULOGY at Genny;s memorial service, Jeff sang a song he had written in her honor.
9. Euphemism (n) mild expression in place of an unpleasant one; The expression “he passed away” is a EUPHEMISM fo “he died”.
10. Exacerbate (v) worsen, embitter; The latest bombing exacerbated England’s already existing bitterness against the IRA, causing the Prime Minister to break off the peace talks abruptly.

TOEFL Must-Have 400 Words : 21-30

1. Aggravate v. To make worse; to anger or intensify; Running will aggravate your sore knees.
2. Aggregate adj. Gathered into or amounting to a whole; It is impossible to judge last year’s performance without knowing the aggregate sales numbers.
3. Agnostic adj. Believing that humans cannot know whether there is a god; His devoutly Christian parents had problems with his agnostic beliefs.
4. Allegedly adv. According to what people say; The chief financial officer of the company allegedly took company money for his personal use.
5. Allegiance n. Loyalty; My allegiance to my country is based on respect for its principles.
   
6. Allocate v. To give out different amounts for different purposes; The budget allocates $58 billion to the military and only about $2 billion to education.
7. Amateurish adj. Not good enough to be the work of professionals; Whoever painted this room did an amateurish job, with all sorts of uneven edges.
8. Ambiguous adj. Having more than one possible meaning; The sentence It’s hard to say is ambiguous, with different meanings in different contexts.
9. Amend v. To change for the better; The residents voted to amend their neighborhood policy on fences.
10. Analyze v. To examine something by looking at its parts; Chemists analyzed the white powder and found it to be only a mixture of sugar and salt.
11. Ancestral adj. Relating to family members from earlier generations; Sweden is my ancestral homeland, from which my great grandfather emigrated in 1922.

TOEFL Must-Have 400 Words : 11-20

1. Adjacent adj. Next to; Even though the villages are adjacent to each other, their residents speak different languages.
2. Adjust v. To change; to get accustomed to something; Travelers are advised to adjust their watches before arriving in the new time zone.
3. Adolescent adj. Characteristic of a teenager; not fully grown up; In policy meetings, George refuses to reason with anyone and just scowls in an adolescent way.
4. Advent n. Coming; arrival; The advent of the automobile greatly increased the demand for petroleum.
5. Adversely adv. In a harmful way, negatively; Excessive rainfall early in the spring can adversely affect the planting of crops.
   
6. Advocate v. To speak out in favor of something; Some environmentalists advocate removing large dams from the Columbia River.
7. Aesthetically adv. In a way that relates to beauty or appearance; The outside of the office building is aesthetically pleasing, but the inside is dark and unpleasant.
8. Affection n. An emotional closeness or warmth; I show affection for my girlfriend by spending time with her, not by spending money on her.
9. Affluence n. Wealth and the style of life that goes with it; Mohadzir grew up amid affluence, which poorly prepared him for his grad student days in crowded apartments with no servants.
10. Aggravate v. To make worse; to anger or intensify; Running will aggravate your sore knees.

TOEFL Must-Have 400 Words : 1-10

1. Abandon v. To leave, to give up; To save their lives, the sailors had to abandon the sinking ship.
2. Abduction n. Kidnapping; Pirates got many crew members by abduction, snatching unlucky citizens from seaport towns.
3. Abstract adj. Not concrete and realistic; not obviously related to everyday experience; Abstract painting became popular partly because early photography was very realistic.
4. Accumulate v. To build up a large amount of something; Over several generations, the Hardington family accumulated vast wealth by buying and selling land.
5. Accuracy n. Precision; exactness; The research department checks all our articles for accuracy of facts before we print them.
   

   
6. Accuse v. To say that someone did something wrong (e.g., committed a crime); Jordan was accused of using a stolen credit card to buy about $300 worth of electronic equipment.
7. Acquire v. To get something, usually something with special value or meaning; Bart hoped to acquire the 1898 D Indian Head penny, which would make his collection complete.
8. Acquisition n. The act of taking possession of something; Our recent acquisition of over 2,000 books makes ours the biggest library in the region.
9. Adapt v. To adjust to the circumstances; to make suitable; Dinosaurs could not adapt to the warmer temperatures. The teacher adapted the exercises for his more advanced students.
10. Addictive adj. Making someone want it so much that the person feels ill without it; Some drugs, like heroin or methamphetamine, are addictive to almost everyone who tries them.