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enunciation
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manganese bronze
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center
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debauchery
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solzhenitsyn
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louis sullivan
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acarpous
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owl
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almanac
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degenerative disorder
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conundrum
conundrum /kəˈnʌndrəm/
noun
-
A difficult problem
(
brain-teaser
, conundrum
, enigma
, riddle
)
a difficult problem
