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