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cosponsor

[koh-spon-ser]
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noun
  1. a joint sponsor, as of a legislative bill.
verb (used with object)
  1. to act as cosponsor for.

Origin of cosponsor

Related formsco·spon·sor·ship, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018