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Level 9

Lesson 20


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impasse
a problem or predicament with no obvious resolution
wunderkind
one who excels in a difficult field at an early age
acumen
ability to discern or discriminate; shrewdness
nanotechnology
the use of single atoms and molecules to construct microscopic devices
notarize
to certify legally
piquant
a strong, stimulating taste
malodorous
having an offensive odor
pungent
a sharp taste; acrid
erroneous
incorrect; mistaken
concurrent
happening at the same time
negligible
of little importance; insignificant
renege
to break a promise or obligation; revoke
precept
a rule of action; a principle to live by
visage
a face or facial expression
irrevocable
impossible to retract or revoke; irreversible