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yield up
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absquatulate
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22-carat gold
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go a long way
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abu nidal organization
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misdeal
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concavo-concave
concavo-concave /ˌkɑnkəvoʊˈkɑnkəv/
adjective
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Concave on both sides
(
biconcave
, concavo-concave
)
concave on both sides