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Merriam-Webster's Learner's Dictionary. Merriam-Webster's Learner's Dictionary.
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agency noun [ˈeɪʤənsi]
  • a business that provides a particular service
  • a government department that is responsible for a particular activity, area, etc.
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activity noun [ækˈtɪvəti]
  • the state of being active : behavior or actions of a particular kind
  • something that is done as work or for a particular purpose—usually plural
  • something that is done for pleasure and that usually involves a group of people —usually plural
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retrieval noun [rɪˈtriːvəl]
  • the act or process of getting and bringing back something : the act or process of retrieving something
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sore adjective [ˈsoɚ]
  • feeling or affected by pain : painful
  • causing emotional pain or distress
  • angry or upset
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southern adjective [ˈsʌðɚn]
  • located in or toward the south
  • of or relating to the south
  • of or relating to the people born, raised, or living in the southeastern U.S.
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toll noun [ˈtoʊl]
  • an amount of money that you are required to pay for the use of a road or bridge
  • an amount of money paid for a long-distance telephone call
  • the number of people who are killed or injured in an accident, disaster, war, etc.—usually singular
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transmit verb [trænsˈmɪt]
  • to send (information, sound, etc.) in the form of electrical signals to a radio, television, computer, etc.
  • to give or pass (information, values, etc.) from one person to another
  • to cause (a virus, disease, etc.) to be given to others
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fairy noun [ˈferi]
  • a creature that looks like a very small human being, has magic powers, and sometimes has wings
  • a homosexual man
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instruction noun [ɪnˈstrʌkʃən]
  • a statement that describes how to do something —usually plural
  • an order or command —usually plural
  • the action or process of teaching : the act of instructing someone —often + in
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rough adjective [ˈrʌf]
  • having a surface that is not even
  • having or causing sudden, violent movements
  • difficult or unpleasant to deal with
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slimy adjective [ˈslaɪmi]
  • covered with slime
  • resembling slime
  • very dishonest, bad, or immoral
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starve verb [ˈstɑɚv]
  • to suffer or die from lack of food : to suffer extreme hunger
  • to cause (a person or animal) to suffer or die because of lack of food
  • to want or need something very much—usually used as (be) starving for
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tickle verb [ˈtɪkəl]
  • to try to make (someone) laugh by lightly touching a very sensitive part of the body with your fingers, a feather, etc.
  • to have or cause a slightly uncomfortable feeling on a part of your body
  • to please or amuse (someone or something)
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thumb noun [ˈθʌm]
  • the short, thick finger on the side of your hand
  • the part of a glove or mitten that covers a thumb
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whine verb [ˈwaɪn]
  • to complain in an annoying way
  • to make a high, crying sound
  • to make a high and unpleasant sound that continues for a long time
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worksheet noun [ˈwɚkˌʃiːt]
  • a piece of paper that contains printed exercises and problems to be done by a student
  • a printed form that is used in planning or calculating something
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owe verb [ˈoʊ]
  • to need to pay or repay money to a person, bank, business, etc.
  • to need to do or give something to someone who has done something for you or given something to you
  • —used to say that something should be done for or given to someone
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mob noun [ˈmɑːb]
  • a large group or crowd of people who are angry or violent or difficult to control
  • a large number of people—usually + of —often plural
  • a secret organized group of criminals —often used as mob before another noun
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knob noun [ˈnɑːb]
  • a round switch on a television, radio, etc.
  • a round handle on a door, drawer, etc.
  • a small lump or piece of something
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knot noun [ˈnɑːt]
  • a part that forms when you tie a piece of rope, string, fabric, etc., to itself or to something else
  • a part where something has become twisted or wrapped around itself —often used figuratively
  • a painful or uncomfortable feeling of tightness in part of your body