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achillea
acetophenetidin
reap
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acquisitively
rapture
vessel
impressive aphasia
obliged
man-at-arms
arbiter
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conundrum
conundrum
/kəˈnʌndrəm/
noun
A difficult problem
(
brain-teaser
,
conundrum
,
enigma
,
riddle
)
a difficult problem
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