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 4000 Duolingo (U - Z) - Spelling Practices
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v. weaken by wearing away base or foundation; injure or impair; dig a mine or tunnel beneath


Spelling Word: undermine
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ad. unquestionably; without doubt; certainly


Spelling Word: undoubtedly
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a. random; difficult to foretell or foresee


Spelling Word: unpredictable
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ad. not in accordance with the season


Spelling Word: unseasonably
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n. instrument, implement, or container for practical use, especially in kitchen or laboratory


Spelling Word: utensil
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ad. absolutely; completely or extremely


Spelling Word: utterly
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n. device or structure for controlling the flow of a fluid


Spelling Word: valve
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n. an event that departs from expectations; permission to do something differently from the usual way


Spelling Word: variance
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a. having many talents; capable of working in many fields


Spelling Word: versatile
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n. fissure in the earth's crust through which molten lava and gases erupt


Spelling Word: volcano