from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To double.
  • transitive v. To arrange in pairs.
  • transitive v. Linguistics To make into a geminate.
  • intransitive v. To occur in pairs.
  • intransitive v. Linguistics To become a geminate.
  • adj. Forming a pair; doubled.
  • n. Linguistics A double or long consonant, such as the tt in the Italian word sotto or the nn in the English word thinness.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Forming a pair.
  • v. To arrange in pairs.
  • v. To occur in pairs.

from the GNU version of the Collaborative International Dictionary of English

  • adj. In pairs or twains; two together; binate; twin.
  • transitive v. To double.

from The Century Dictionary and Cyclopedia

  • To double.
  • To become double.
  • Twin; combined in pairs; binate.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a doubled or long consonant
  • v. form by reduplication
  • v. arrange in pairs
  • v. occur in pairs
  • v. arrange or combine in pairs


Latin gemināre, gemināt-, from geminus, twin.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin geminātus, perfect passive participle of geminō ("I double"). (Wiktionary)



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