| serial n. a story appearing in regular installments on tv, magazine, or newspaper
 a. happening one after another in time or order
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| service n. act of dealing with customers in a shop, restaurant, etc.
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| sewer n. waste pipe that carries away sewage or surface water
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| shield n. protective covering or structure; a large, flat object made of metal or leather that soldiers held to protect themselves
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| significance n. the quality of being worthy of attention; importance
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| skiing n. action of traveling over snow on skis, especially as a sport or recreation
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| slogan n. phrase used repeatedly, as in advertising or promotion
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| social a. relating to human society and its members
 a. marked by friendly companionship with others
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| solemn a. serious and without any humour
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| sophomore n. a student studying in the second year at a US college or high school
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| strict a. limiting people’s freedom to behave as they wish beyond what is usual
 a. exactly correct
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| subtle a. slight; be difficult to detect or grasp by the mind
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| suggestion n. an idea, possible plan, or action that is mentioned for other people to consider
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| susceptible a. easily influenced; having little resistance, as to a disease
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| suspicious a. openly distrustful and unwilling to confide; questionable
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| teenage a. being of the age 13 through 19
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| temperamental a. excessively sensitive or irritable; moody; likely to perform unpredictably
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| Tennessee n. a state in east central United States
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| therefore ad. consequently; hence
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| thirteen a. being one more than twelve
 n. the number that is the sum of twelve and one
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| thorough a. complete with regard to every detail; not superficial and not partial
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| thoroughly ad. completely, very much, in a detailed and careful way
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| thunderstorm n. storm resulting from strong rising air currents; heavy rain or hail along with thunder and lightning
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| tissue n. groups of cells that make particular parts of the body
 n. soft thin paper
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| toboggan n. an object for sitting on and sliding over snow and ice, its board curved upward in front
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| tomato n. mildly acid red or yellow pulpy fruit eaten as a vegetable
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| tractor n. a motor vehicle with large back wheels and thick tyres, used on farms for pulling machinery
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| tranquil a. calm and peaceful and without noise, violence, or worry
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| tremendous a. huge; capable of making one tremble
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| trustworthy a. dependable and reliable; able to be trusted
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| tunnel n. passageway through or under something, usually underground
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| twelfth a. coming next after the eleventh and just before the thirteenth in position
 n. one part in twelve equal parts
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| underachiever n. someone who is less successful than they should be at school or at work
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| undercover a. working secretly using a false appearance to get information for the police
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| underweight a. weighing less than usual, very thin
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| uniform n. a particular set of clothes for a particular group, like police
 a. the same; not changing or different in any way
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| unite v. bring together for a common purpose or action or ideology or in a shared situation
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| unity n. state of being joined together or in agreement; quality of being united into one
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| unwieldy a. difficult to use or handle because of size, weight, or shape; lacking grace in movement or posture
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| unwritten a. not recorded in writing
 a. not official, but which people generally accept and obey
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| urban a. metropolitan; of or in a city or town
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| vaccination n. the process or an act of giving someone a vaccine
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| vague a. imprecise or indistinct; not clearly expressed, known, described, or decided
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| vanilla n. a substance made from the seeds of a tropical plant, used to give flavour to sweet foods
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| variety n. diversity; quality or condition of being various or varied
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| viewpoint n. a place from where a person can see something, as natural beauty
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| waltz n. a formal dance in triple time with a strong accent to move around a large room
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| worth a. having a particular value, especially in money
 n. the quality that renders something desirable or valuable or useful
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| wring v. twist by holding tightly; compress something by turning hands in opposite directions to extract liquid
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| yield v. produce something positive such as a profit; give forth a natural product
 v. stop in order to allow other vehicles to go past; give up the control of something
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