Lesson 188— Academic Word List: Lesson 38

Part 1: Watch the video 2-3 times

Part 2: Match the Words with their Definitions

a. to make as large or great as possible
b. a system of parts working together in a machine
c. greater in size, extent, or importance
d. to keep something in good condition or working order
e. to find the exact position of something
f. the edge or border of something
g. involving physical effort or labor
h. reasoning conducted or assessed according to strict principles of validity
i. to handle or control in a skillful manner
j. fully developed physically and mentally


  1. manipulate
  2. major
  3. margin
  4. mature
  5. locate
  6. maximize
  7. manual
  8. maintain
  9. mechanism
  10. logic

Correct matches:

  1. i
  2. c
  3. f
  4. j
  5. e
  6. a
  7. g
  8. d
  9. b
  10. h

Part 3: Vocabulary in Context: Sentences

  1. When traveling in a foreign city, it is important to locate the nearest embassy just in case of an emergency.
  2. The success of scientific research relies heavily on the application of logic and reasoning throughout the process.
  3. It takes a lot of effort to maintain relationships with friends who live far away, but it’s definitely worth it.
  4. One major benefit of living in a big city is having access to a wide range of cultural events and activities.
  5. In order to succeed in business, you must be able to manipulate data effectively to make informed decisions.
  6. Although most appliances come with an instruction manual, some people prefer watching video tutorials online.
  7. Saving money each month can give you a financial margin of safety in case of unexpected expenses.
  8. As we grow older, our perspective on life becomes more mature and refined through experience.
  9. To achieve your full potential, it’s important to maximize every opportunity that comes your way.
  10. Understanding the mechanism behind how the human brain processes information can lead to groundbreaking scientific discoveries.

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