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 Group (U V W Y Z) - Spelling Practices
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a. Syn. supersonic
supersonic; higher in frequency than the range of sound perceptible to the human ear


Spelling Word: ultrasonic
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a. Syn. subterranean; buried
under the level of the ground; buried


Spelling Word: underground
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v. Syn. embark; assume
take on; embark on; assume


Spelling Word: undertake
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n. Syn. task; project; career
task or assignment undertaken; career


Spelling Word: undertaking
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a.
peaceful without disturbance; free from interruption


Spelling Word: undisturbed
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v. Syn. disentangle; solve
undo or ravel knitted fabric of; separate and clarify; solve


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


Spelling Word: valve
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n. Syn. speed
rapidity or speed of motion; swiftness


Spelling Word: velocity
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n. Syn. border; edge
extreme edge or margin; border; enclosing boundary; space enclosed by such a boundary


Spelling Word: verge
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a. Syn. sticky; gluey
sticky; gluey; having high resistance to flow


Spelling Word: viscous