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acceptableness
-
precedence
-
implicit
-
sibilant consonant
-
osip mandelstam
-
pesky
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accrual basis
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reliance
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inasmuch
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extend
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conundrum
conundrum /kəˈnʌndrəm/
noun
-
A difficult problem
(
brain-teaser
, conundrum
, enigma
, riddle
)
a difficult problem
