Lesson 171 — Academic Word List: Lesson 21

Part 1: Watch the video 2-3 times

Part 2: Match the Words with their Definitions

a. to give all or a large part of one’s time or resources to a particular activity or cause.
b. a measurable extent of some kind, such as length, breadth, depth, or height.
c. individually separate and distinct.
d. a tool or piece of equipment designed for a specific purpose.
e. to show or exhibit.
f. to make or become less in size, importance, or intensity.
g. to depart from an established course or norm.
h. to force something out of its usual or proper place.
i. to recognize or ascertain what makes someone or something different.
j. to unfairly treat a person or group differently from others based on prejudice.


  1. discrete
  2. device
  3. deviate
  4. dimension
  5. discriminate
  6. displace
  7. devote
  8. differentiate
  9. diminish
  10. display

Correct matches:

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

Part 3: Vocabulary in Context: Sentences

  1. Despite the strict rules, she decided to deviate from the standard procedure.
  2. The new smart device has advanced features that make life easier.
  3. He promised to devote all his time and effort to completing the project successfully.
  4. It’s important to differentiate between facts and opinions in academic writing.
  5. The artist carefully considered the dimension of each canvas before starting to paint.
  6. The noise from the construction site did not diminish even late at night.
  7. The data was divided into discrete categories for easier analysis.
  8. We should never discriminate against others based on their race or ethnicity.
  9. The new shopping mall will displace several small businesses in the area.
  10. The museum will display priceless artifacts from ancient civilizations next month.

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