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kissing cousin

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noun
  1. See under kissing kin.
  2. something closely related or very similar: a textile that is a kissing cousin to nylon.
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Origin of kissing cousin

First recorded in 1935–40

kissing kin

noun
  1. any more or less distant kin familiar enough to be greeted with a kiss, as a cousin (kissing cousin).
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018