Unit 30

  amber n. Amber is a hard, yellowish material that comes from trees. →The necklace was made from pieces of amber. charcoal [tfaxkoul] n. Charcoal is a black material that is used as fuel for fire. →There was burnt charcoal left on the ground from an old fire. columnist [kdlemnist] n. A columnist is a […]

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Unit 29

analogous [anaelagas] adj. If something is analogous to another thing, then it is like it in certain ways. —* The relationship with his teacher was analogous to that of a son and mother. binoculars [banakjalarz] n. Binoculars are a device used for seeing things that are far away. —* He could see the ship on […]

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Unit 28

adjoining [ad3dinin] adj. If something is adjoining, it is next to or joined with a building, or room. —►I couldn’t sleep because the people in the adjoining room were loud. allege [aied3] v. To allege something is to say that it is true without offering proof. -> The little girl had alleged that her older […]

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Unit 27

analogy [anaelad3i] n. An analogy is a connection made between things to show that they are similar. -» The doctor made an analogy between the human heart and a water pump. b MOTOR OIL ancestry [sensestri] n. A person’s ancestry is the series of people from whom a person descended. —* M/e studied our ancestry […]

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Unit 26

constrain [kanstrein] V. To constrain something means to limit its development. —*Jim cannot join us because he is constrained by previous plans. depot [dkpou] n. A depot is a bus or train station. —»He waited for his mother to arrive at the depot. emulate [emjaleit] V. To emulate people means to imitate them because they […]

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Unit 25

acrobat [aekrabaet] n. An acrobat is a person who entertains people by doing amazing physical things. —* There were acrobats at the circus that did impressive and complicated jumps. advocacy [aedvskesi] n. Advocacy is the act of supporting or recommending something. —►Janine’s strong advocacy for the event made people want to attend. communal [kamju:nl] adj. […]

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Unit 23

allocate [aelakeit] v. To allocate something means to put it aside for a certain purpose or person. -» The government allocated $100 million to aid the disaster relief effort. appetizing [aepitaizirj] adj. When food is appetizing, it looks and smells very good. —» The appetizing plate of cookies was gone in half an hour. blizzard […]

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Unit 22

coward [kausrd] n. A coward is a person who lacks courage to do risky or dangerous things. —►A firefighter cannot be a coward. They have to be able to act quickly. delete [dii(:t] v. To delete something means to remove or erase written material. —►Several lines had been deleted from her speech. firsthand [fa:rsthaend] adj. […]

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Unit 21

abolish [abdiij] v. To abolish something means to put an end to it, such as a system or law. —* President Lincoln abolished slavery in the US. amend [amend] V. To amend something means to change it to improve or make it accurate. —►The countries were in agreement that the treaty needed to be amended. […]

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Unit 20

adhesive [*d h ( siv] n. An adhesive is a substance used for sticking things together. —►The carpenter used an adhesive to hold the two pieces of wood together. adverse [aedvairs] adj. If something is adverse, then it is harmful. —»Not eating healthy foods can have an adverse effect on your health. dependency [dipendansi] n. […]

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Unit 19

airway [earwei] n. An airway is the passage by which air reaches a person’s lungs. —*■Since he was sick, mucus would occasionally get stuck in his airway. Almighty [o:lmaiti] n. The Almighty is a name for a god in a religion. -* Before eating, they thanked the Almighty for their food. advent [sedvent] n. An […]

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Unit 18

beforehand [t>ifoxhsend] adv. If something is done beforehand, then it is done in advance. -» He packed his luggage beforehand, so he was able to leave right away. centigrade [sentagreid] n. If a temperature is centigrade, it is scaled, so water freezes at 0° and boils at 100°. —►During the spring time, the temperature gets […]

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Unit 17

accelerate [aekselareit] v. To accelerate means to increase in speed. —►When he stepped on the gas pedal, the motorcycle accelerated. a n e w [anju:] adv. If you do something anew, you do it again and in a different way. —»Though he had failed his driving test, he decided to try it anew. defect [difekt] […]

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Unit 16

amid [amid] prep. If something is amid something else, then it is in the middle of it. —* The bee was busily flying amid the flowers in the garden. backstage [bseksteid3] adv. If something happens backstage, it occurs behind a theater’s stage. After the show, the director went backstage and thanked the actors. billionaire [biljanear] […]

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Unit 15

adhere [adhiar] v. To adhere means to act in the way that a rule or agreement says is right. -* If the new employees wish to succeed, they must adhere to the boss’s rules. administer [administar] V. To administer means to take responsibility for organizing something. —»The teacher’s assistant will administer the test. Compassionate [kampaejanit] […]

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Unit 14

camouflage [ksemafld:3] n. Camouflage is something used to hide people and things. —►The green and brown camouflage was best used for hiding in forests and jungles. contemplate [kantempleit] v. To contemplate something means to think about it. -> Mark took a moment to contemplate the math problem before solving it. contend [kentend] V. To contend […]

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Unit 13

certify [sartafai] v. To certify something means to confirm that its results are true. —►The photograph on her passport certified that she was indeed Jolene Sawyer. collaborate [kalaebareit] v. To collaborate means to work together on something. —►When they collaborated, they managed to finish their chores early. compile [kampail] v. To compile things means to […]

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Unit 12

adorn [ado:rn] v. To adorn something means to make it more beautiful by decorating it. -* Small glass beads adorned the vase. bliss [blis] n. Bliss is a state of complete happiness. —►Every time he sees his girlfriend, he feels a sense of bliss. butler [bAtlar] n. A butler is the most important male servant […]

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Unit 11

advocate [aedvakeit] v. To advocate a plan or idea is to support or suggest it in public. —» The group advocated increased spending on education and schools. authorize [5:earaiz] v. To authorize something means to give permission for it. —» The mayor authorized the construction of a new statue in the park. Civilian [siviljan] n. […]

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Unit 10

accumulate [akju:mjaleit] V. To accumulate something is to collect a lot of it over time. —►The mail accumulated in their mailbox while they were on vacation. aerial [tanai] adj. When something is aerial, it relates to being in the air or flying. —►The aerial photographer took pictures from the air balloon. apparatus [aeparaeitas] n. ^ […]

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Unit 9

artery [drtari] n. An artery is a tube that takes blood from the heart to the rest of the body. -*■ Eating healthily keeps your arteries clean, so blood can flow with ease. deterioration tditiarioreijan] n. Deterioration is the act of becoming worse. -* The lack of care led to the deterioration of the house. […]

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Unit 8

congested [kand3estid] adj. If something is congested, it is full or blocked. —►Tom didn’t get home until after dark because the road was so congested. courier [kuriar] n. A courier is someone who takes and delivers mail or packages. —►Before trains, most couriers used horses to travel. deform idifoxm] v. To deform something means to […]

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Unit 7

altar [o;ltar] n. An altar is a table used in churches. —►The altar had many lit candles on it. arthritis [areraitis] n. Arthritis is an illness causing pain and swelling in a person’s joints. —* Agatha couldn’t play the piano anymore because of her arthritis. botany [batani] n. Botany is the study of plants. —►Gardens […]

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Unit 6

ashore [aJ6:r] adv. If something goes ashore, it goes from water to the land. -* After a long day of fishing, Glen pulled his boat ashore, so it wouldn’t float away. contradict [kantradikt] V. To contradict means to state the opposite of what someone else has. —»Ken was always fighting with his little sister because […]

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Unit 5

alternate fcritameit] v. To alternate means to switch back and forth between two things. —►The best exercise alternates muscle and heart strengthening. apologetic [apdl0d3etik] adj. If someone is apologetic, they are sorry about something. -+ The boy felt apologetic after losing his sister’s favorite toy. benign [binain] adj. If something or someone is benign, they […]

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Unit 4

attic n. An attic is a room just below a house’s roof. →There were two windows in their attic. chunk n. A chunk is a thick, solid piece of something. →When they broke open the rock, they saw it was filled with chunks of gold. civic adj. If something is civic, then it is related […]

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Unit 3

  absurd adj. If something or someone is absurd, they are ridiculous. →That group of people making animal noises sounds completely absurd. anemia n. Anemia is a blood condition that causes a person to be pale and tired. →When she first developed anemia, she became tired often. aristocracy n. The aristocracy is the highest class of people […]

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Unit 2

  arduous adj. When something is arduous, it demands great effort or labor. →The explorers began their arduous hike up the steep mountain. attain v. To attain something means to gain or achieve it, often after a lot of effort. → In two more years, I will attain my high school diploma. coexist  v. To […]

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Unit 1

alleviate v. To alleviate pain or suffering means to make it less intense or severe. →She needed something to alleviate the pain in her back. astrology  n. Astrology is the study of the stars in the belief that they influence people’s lives. →Jack, who studies astrology, believes that the stars can predict the future. differentiate […]

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