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double
['dəbəɫ]
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dual
['duəɫ]
a double (or dual) role for an actor
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three-fold
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threefold
['θriˌfoʊɫd]
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treble
['trɛbəɫ]
"every episode has its double and treble meaning" -Frederick Harrison
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two-fold
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twofold
['tu'foʊɫd]
"the office of a clergyman is twofold; public preaching and private influence" - R.W.Emerson