Lesson 21
- assistant
- consultant
- coolant
- defendant
- radiant
- disinfectant
- ignorant
- absorbent
- confident
- different
- engineer
- activist
- cyclist
- motorist
- pianist
- typist
- comedian
- electrician
- librarian
- musician
Challenge
- puppeteer
- occupant
- technician
- relevant
- pertinent
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Lesson 22
- incomplete
- indirect
- indent
- instead
- include
- inexact
- infamous
- outbid
- outbreak
- outcast
- outdated
- outdoor
- downfall
- downhill
- downpour
- downstairs
- update
- upfront
- uphill
- upwind
Challenge
- inexpensive
- involuntary
- outpatient
- upstage
- downplay
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Lesson 23
- decoration
- abbreviation
- admiration
- association
- aviation
- civilization
- declaration
- addition
- composition
- preposition
- abdominal
- admiral
- rendition
- disposal
- emotional
- environmental
- denial
- facial
- judicial
- testimonial
Challenge
- superficial
- repetition
- conversation
- approximation
- international
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Lesson 24
- additional
- beautifully
- blissfully
- boastfully
- carefully
- cheerfully
- colorfully
- educational
- effortlessly
- endlessly
- guiltlessly
- joyfully
- meaningfully
- playfully
- restfully
- respectfully
- childishness
- truthfully
- usefully
- powerfully
Challenge
- occasionally
- blamelessness
- sentimentally
- gleefulness
- motionlessly
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Lesson 25
- radiant
- confident
- engineer
- typist
- electrician
- inexact
- outdated
- downfall
- upfront
- upwind
- admiration
- addition
- emotional
- abdominal
- testimonial
- decoration
- effortlessly
- meaningfully
- truthfully
- carefully
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